A two-dimensional format that uses horizontal and vertical structure.

Short for two-factor authentication, an additional sign-in verification step.

Common shorthand for accessibility in digital products.

A shortened form of a word or phrase.

A record representing a user, organization, or service identity.

An identifier that specifies where a device, resource, or value can be found.

A symmetric block cipher standardized as the Advanced Encryption Standard.

AES used with Cipher Block Chaining mode, which links each block to the previous ciphertext block.

AES used with Galois/Counter Mode, providing authenticated encryption.

A two-letter country code from the ISO 3166-1 alpha-2 standard.

A defined set of letters or symbols used to represent language or values.

The `&` character, commonly used in HTML entities and query strings.

A component or process that examines input and reports its properties.

Relating to historical systems such as Roman numerals or classical languages.

Mathematics involving addition, subtraction, multiplication, and division.

Decorative visual styling, often produced from text characters.

A character encoding for basic Latin letters, digits, punctuation, and control codes.

Named properties attached to an element, object, or structured value.

A general term covering identity verification and access control.

The process of verifying an identity or credential.

A factor, device, or application used to verify identity.

The process of deciding what an authenticated identity may access or do.

The `\` character used for escaping, paths, and special sequences.

A financial institution or the financial-data context associated with one.

A prominent block of metadata or visual content used to identify or preview something.

A machine-readable pattern that encodes data in bars, modules, or symbols.

The radix or reference value used to represent numbers or calculate a result.

Binary-to-text encoding used to represent bytes as readable ASCII text.

HTTP Basic Authentication, which sends a username and password credential pair.

Basic Bank Account Number: the national part of an international bank account number.

A password-hashing function based on the Blowfish cipher.

An authentication scheme where possession of a token grants access.

To make source or structured data easier to read through formatting and indentation.

Formatting SQL statements with readable spacing, indentation, and clause layout.

Formatting YAML with readable indentation and consistent structure.

A repeatable measurement used to compare performance.

A base-2 number system or data represented as sequences of bits.

A Bitcoin Improvement Proposal defining mnemonic words and seed derivation.

A decentralized digital currency and its associated transaction system.

A symmetric-key block cipher designed by Bruce Schneier.

Sending one event or message to multiple listeners or destinations.

Software that retrieves, interprets, and displays web content.

A range of byte offsets identifying a portion of a file or response.

A tool or operation that evaluates a mathematical or practical calculation.

A naming style where words are joined and later words begin with uppercase letters.

An image-capture device or the browser capability that accesses one.

The standard, normalized, or preferred representation of a value.

A character-data section used to include literal text inside XML markup.

A temperature scale where water freezes at 0 degrees and boils at 100 degrees at standard pressure.

A digitally signed document that binds an identity to a public key or claim.

The individual letters, symbols, numbers, or code units in text.

A compact reference containing commonly needed commands, values, or syntax.

A calculated value used to detect accidental changes or corruption in data.

The Unix operation and permission notation used to change file access modes.

An instrument or timer for measuring elapsed time.

Classless Inter-Domain Routing notation for an IP network and its prefix length.

An algorithm that transforms plaintext into ciphertext and back with a key.

Assertions about an identity or token subject, such as issuer, audience, or expiry.

Free from unwanted syntax, duplicates, noise, or other extraneous content.

HTTP request headers that let a server receive selected browser or device characteristics.

Instructions or symbols written in a programming or markup language.

A numeric value assigned to a Unicode character or abstract symbol.

A numeric value assigned to a Unicode character or abstract symbol.

A representation of hue, saturation, brightness, or related visual properties.

Reduced in size or whitespace while preserving the represented meaning.

To examine two or more values to identify equality, ordering, or differences.

To reduce the size of data using a reversible or lossy encoding method.

Configuration data that controls how software behaves.

A conversion between structured configuration formats.

To establish a communication or network relationship between endpoints.

Isolated software environments that package an application and its dependencies.

An HTTP or MIME label identifying the media type of content.

To change a value from one representation, unit, or format into another.

A component that changes data from one representation, unit, or format into another.

A sovereign state or geographic country identity.

A standardized code identifying a country or territory.

Information used to prove identity or obtain access, such as a username or key.

A time-based job scheduling system commonly found on Unix-like systems.

The table and syntax used to define scheduled cron jobs.

The use of cryptographic algorithms and primitives to protect or transform data.

Cascading Style Sheets, the language used to style HTML and other documents.

Comma-Separated Values, a delimited text format for tabular data.

A recognized medium of exchange with a code, symbol, or unit value.

Changing data structure or representation while preserving its intended information.

A URI scheme that embeds media type and data directly inside the URI.

A URL-like value that embeds content instead of pointing to a remote resource.

An organized collection of data and the system used to store or query it.

A calendar value identifying a day, month, and year.

The process of finding, understanding, and correcting software problems.

A base-10 number system or a value written using decimal notation.

To turn encoded or serialized data back into its represented value.

A component that turns encoded or serialized data back into its represented value.

A change toward a smaller amount, value, or magnitude.

The process of turning ciphertext back into plaintext with a key.

The removal or consolidation of repeated values or records.

A character or sequence that separates fields, records, or sections.

A temperature scale that decreases as temperature increases and uses 0 degrees for boiling water.

The measured difference or change between two values or states.

The process and practices involved in creating and maintaining software.

A physical or virtual computing endpoint with identifiable capabilities.

Practices combining software development and operations through automation and collaboration.

A representation of changes between two versions of text or data.

The amount or content by which two values or versions differ.

A compact fixed-length result produced from input by a hash function.

A cryptographic proof of a message's origin and integrity.

The measured width, height, depth, or other extents of an object.

A platform for building, distributing, and running containerized applications.

A format and command-line workflow for defining multi-container applications.

The Docker command that creates and starts a container from an image.

The elapsed time required to transfer data from a remote source.

A component or layout that reveals content from a side or edge of an interface.

Placeholder or sample data that stands in for a real value.

The amount of time between a start and an end.

The international telephone-number format defined by ITU-T Recommendation E.164.

The expensive key-setup variant of Blowfish used by bcrypt.

An electronic message address or the message format sent to one.

A Unicode pictograph or ideogram used as a text character.

An interface for browsing and selecting emoji characters.

Text-based expressions formed from punctuation or character sequences.

To represent data using a specified character set, format, or algorithm.

The process of transforming readable data into protected ciphertext.

The core software component that performs a specialized computation or interpretation.

Named or numeric references representing reserved or special characters in markup.

A measure of unpredictability or randomness in a value or source.

A reference point from which timestamps or elapsed time are measured.

Embedded Ruby, a template syntax that mixes Ruby code with text or markup.

To represent special characters safely so they are treated as data rather than syntax.

A predicted amount of time needed to complete an operation.

Estimated Time of Arrival or completion.

A family of wired local-area network technologies and frame formats.

A component that computes the result of an expression or program fragment.

A notable occurrence that can be observed, handled, or recorded by software.

A component that replaces a compact expression with its expanded representation.

A representation or operation that makes data available outside its original context.

A combination of values, operators, and functions that produces a result.

An add-on or suffix that extends software behavior or identifies a file type.

A temperature scale where water freezes at 32 degrees and boils at 212 degrees at standard pressure.

Government-issued currency not backed by a physical commodity.

A text-art format or program that renders letters as large ASCII-style banners.

A named sequence of data stored or represented as a unit.

The name used to identify a file in a filesystem or interface.

A Boolean option or marker that enables, disables, or describes a state.

A structure with little or no nesting, hierarchy, or depth.

A typeface design and its glyph rendering data.

The structure, arrangement, or presentation style used to represent data.

A control for choosing among supported output or input formats.

Formatting YAML data with consistent indentation and readable structure.

A component that changes presentation or layout without changing intended content.

A component or process that creates values, data, or source text.

The browser API that requests access to a user's camera or microphone.

A distributed version-control system for tracking changes to files.

The command syntax used to inspect, change, and manage Git repositories.

A concise reference of Git commands, syntax, and common workflows.

A named pointer, such as a branch or tag, to a Git commit or history position.

The Gmail address behavior that treats dots in the local part as insignificant.

A visual image, drawing, or rendered representation.

Collections of related items treated as a unit.

Globally Unique Identifier, a general name often used for a UUID.

The physical components of a computer or device.

A fixed-size value calculated from input by a hash function.

Metadata fields placed before the main body of a message or document.

A base-16 representation using digits 0-9 and letters A-F.

The base-16 number system using digits 0-9 and letters A-F.

Hash-based Message Authentication Code, a keyed integrity and authenticity check.

HMAC-based One-Time Password, a counter-based one-time code algorithm.

A color model described by hue, saturation, and lightness.

Markup language used to structure content on the web.

An editor for writing or manipulating HTML markup.

A rendered view of HTML content without changing its source markup.

Hypertext Transfer Protocol, the request-response protocol used by the web.

A named metadata field sent in an HTTP request or response.

A shorthand for internationalization, preparing software for multiple locales.

International Bank Account Number, a standardized identifier for a bank account.

A value used to distinguish and refer to an entity.

The Institute of Electrical and Electronics Engineers, which publishes many technical standards.

A visual raster or vector representation of content.

A change toward a larger amount, value, or magnitude.

Whitespace or nesting used to show hierarchical structure in text or code.

To examine the structure, content, or metadata of a value or resource.

A whole number without a fractional component.

Designed to work across countries, languages, or regional conventions.

Internet Protocol, the addressing and packet-routing layer of computer networks.

A numeric address identifying a network interface using Internet Protocol.

Placeholder Latin text commonly used to demonstrate typography and layout.

Internet Protocol version 4, using 32-bit network addresses.

Internet Protocol version 6, using 128-bit network addresses.

An international standards organization or a standard published by it.

The ISO standard for codes representing countries and subdivisions.

The ISO standard for three-letter currency codes and numeric codes.

A programming language commonly used for web and application development.

A unit of work scheduled or executed by a system.

Common abbreviation for JavaScript.

A repeatable performance measurement for JavaScript code.

Lightweight data format for structured objects, arrays, and values.

Conversion from JSON data notation to TOML configuration syntax.

Conversion from JSON data notation to YAML syntax.

A compact signed token format for carrying claims between parties.

JSON Web Token, a compact token format for transmitting claims.

Common shorthand for Kubernetes, a platform for orchestrating containers.

A naming style that joins lowercase words with hyphens.

An absolute temperature scale whose zero is absolute zero.

A value used to identify data or control a cryptographic operation.

A related public key and private key used together in asymmetric cryptography.

A device or input layout used to enter keys and characters.

A numeric or symbolic value identifying a keyboard key event.

A browser event fired when a keyboard key is pressed down.

Recorded segments of elapsed time within a running timer.

The alphabet or language family derived from Latin, including Roman letters.

Longest Common Subsequence, a sequence-preserving comparison algorithm.

The size of a value measured in characters, bytes, items, or another unit.

A CSS preprocessor language that adds variables, nesting, and mixins.

Ordered according to dictionary-like comparison of sequences or strings.

Separate rows of text divided by line-break characters.

A reference that connects one resource, location, or value to another.

An open-source Unix-like operating-system kernel and its surrounding ecosystem.

An ordered or unordered collection of values.

A position or place represented by coordinates, address, or descriptive data.

A search for a value or record in a known set of data.

A conventional placeholder word used in lorem ipsum text.

Text written with letters in their lowercase forms.

Media Access Control, the link-layer address associated with a network interface.

The company or organization that made a device or component.

A lightweight markup language for formatting plain text.

Conversion from Markdown syntax to HTML markup.

Annotations or tags that describe the structure or presentation of content.

A pattern used to hide, select, or constrain parts of a value.

The portions of input that satisfy a pattern or comparison condition.

The study and computation of numbers, quantities, shapes, and relationships.

A rectangular arrangement of values in rows and columns.

A legacy 128-bit cryptographic hash function.

A numeric observation expressed in a defined unit or scale.

A standardized label describing the format of data, also called a MIME type.

A browser API for recording audio or video streams.

HTML elements that provide metadata about a document.

Multi-Factor Authentication, identity verification using multiple independent factors.

Multipurpose Internet Mail Extensions, a standard for media types and encoded content.

To remove unnecessary whitespace and syntax while preserving behavior or meaning.

Reusable blocks of declarations or code that can be included in other definitions.

A memory aid, especially a human-readable word sequence representing binary data.

Designed for or associated with handheld or portable devices.

A representative model used to preview a design or interface.

A modulo-97 arithmetic check used by standards such as IBAN validation.

Options or markers that alter the behavior of an operation or pattern.

A medium of exchange represented as an amount and currency.

The phonetic alphabet assigning standardized words to letters.

Connected devices and the protocols used for communication between them.

A component that converts equivalent inputs into a consistent representation.

A written symbol or notation representing a number.

An abbreviated word formed by showing a count of omitted middle characters.

A component that makes data less readable while retaining its intended use or shape.

A base-8 number system using digits 0 through 7.

Abbreviation for Open Graph metadata used by social platforms.

A metadata protocol for controlling how shared web pages appear in previews.

System software that manages hardware and provides services to applications.

Operations per second, a rate measuring how many operations finish each second.

Abbreviation for operating system.

One-Time Password, a short-lived or single-use authentication code.

Organizationally Unique Identifier, the vendor prefix of a MAC address.

Microsoft's email and productivity service or its associated message formats.

To read text or data according to a grammar and produce structure from it.

A component that reads text or data according to a grammar and produces structure.

A sequence of words used as a human-readable secret or seed input.

A secret character sequence used to authenticate or protect access.

A set of changes applied to update, fix, or transform a file or codebase.

A rule or template used to recognize, validate, or generate values.

Password-Based Key Derivation Function 2, which derives keys using repeated hashing.

Portable Document Format, a fixed-layout document format.

A diagnostic that examines a PDF for selected structural or signature properties.

A text-armored format that wraps encoded keys, certificates, or other binary objects.

A proportion expressed as a value out of one hundred.

The speed, resource use, and responsiveness of a computation or system.

Rules describing which identities may read, write, execute, or access a resource.

A telephone number or a device and service used for telephony.

A component that presents a telephone number in a standardized format.

A component that extracts structured fields from a telephone number.

Relating to the sounds of speech or a system for spelling sounds clearly.

A captured photographic image.

The relationship between physical display pixels and logical CSS pixels.

A standard padding scheme or cryptographic message syntax associated with PKCS.

A standard syntax for storing private-key information.

A temporary stand-in for content, dimensions, or an unfinished value.

A numbered logical endpoint used to identify a network service.

To improve readability through formatting, indentation, or spacing.

A view showing an expected result before or alongside final use.

Protection of personal, sensitive, or user-controlled information.

The secret half of an asymmetric key pair that must remain controlled by its owner.

A tool or process that measures where time or resources are spent.

The amount or stage of work completed toward a goal.

A security service or product associated with email protection and threat filtering.

A relationship between a part and a whole or between two ratios.

A defined set of rules for communication or data exchange.

The shareable half of an asymmetric key pair.

Short name for a Quick Response two-dimensional barcode.

A two-dimensional barcode for encoding text, links, and small payloads.

An IBAN format used with Swiss QR-bill payment information.

A request for data, often expressed as a structured search or parameter string.

Quotation characters or the literal text enclosed by them.

The base that determines how positional numbers are represented.

Selected without a predictable deterministic sequence, subject to a randomness source.

A bounded interval or collection between a lower and upper limit.

An absolute temperature scale using Fahrenheit-sized degrees.

A quantitative relationship comparing two amounts.

A component that loads, interprets, or extracts information from input.

A structured collection of related fields representing one item.

The process of restoring access, data, or state after loss or failure.

To conceal or remove sensitive portions of content.

A pointer or source used to identify, locate, or explain another value.

A regular expression: a pattern language for matching text.

A concise reference of regular-expression syntax and behavior.

A utility that checks how a regular expression matches sample text.

A formal pattern language for searching, validating, and replacing text.

To turn structured data or code into a visible or otherwise usable representation.

To substitute one value, substring, or pattern with another.

The amount of detail represented by an image, display, or measurement.

The result or message returned after a request or operation.

The RFC defining IPv6 Unique Local Addresses.

The RFC defining HMAC-based One-Time Passwords.

The RFC defining Time-Based One-Time Passwords.

A color model using red, green, and blue component values.

Text that carries formatting such as emphasis, links, fonts, or colors.

A 160-bit cryptographic hash function in the RIPEMD family.

Relating to the Roman numeral system or ancient Roman conventions.

Repeated iterations of an algorithm, especially a hash or cipher operation.

An asymmetric cryptographic algorithm based on large-integer factorization.

A programming language commonly used for web and general-purpose development.

Conditions or instructions that determine valid behavior or transformation.

A security wrapper that redirects a link through a scanning or protection service.

Random data combined with a secret before hashing to resist precomputed attacks.

An isolated execution environment that limits access and side effects.

To remove or neutralize unsafe, invalid, or unwanted content.

A component that removes or neutralizes unsafe, invalid, or unwanted content.

A CSS preprocessor language with variables, nesting, functions, and mixins.

To examine input systematically for a pattern, code, or available content.

A plan assigning work or events to specific times or ordering.

Following conventions used for scientific notation, calculation, or measurement.

A display surface or a captured visual frame from one.

The CSS-compatible SCSS syntax supported by the Sass preprocessor.

Information intended to remain known only to authorized parties.

Protection against unauthorized access, misuse, alteration, or disclosure.

Initial data used to deterministically initialize a generator or derive a value.

A photograph taken of oneself, usually with a front-facing camera.

Search Engine Optimization: practices that improve a page's discoverability in search engines.

Single Euro Payments Area, the framework for standardized euro payments.

A character or sequence that visually or structurally divides adjacent items.

A component that converts structured values into a storable or transferable representation.

A legacy 160-bit cryptographic hash function in the SHA family.

A 224-bit member of the Secure Hash Algorithm family.

A 256-bit member of the Secure Hash Algorithm family.

A Secure Hash Algorithm family based on the Keccak sponge construction.

A 384-bit member of the Secure Hash Algorithm family.

A 512-bit member of the Secure Hash Algorithm family.

A compact textual alias that represents a longer symbol, emoji, or action.

A value or pattern used to identify, authenticate, or describe content.

A URL-friendly identifier, usually made from lowercase words and separators.

To convert text into a URL-friendly lowercase slug.

A naming style that joins lowercase words with underscores.

A captured representation of data or state at a particular moment.

The title, image, and description shown when a link is shared socially.

Able to be ordered consistently according to a comparison rule.

Specifications that define expected behavior, structure, or constraints.

A measurement comparing how quickly two or more operations complete.

The ordered letters or phonetic words used to represent a written term.

SubjectPublicKeyInfo, a standard structure containing a public key and its algorithm identifier.

The elapsed time recorded between checkpoints during a timed activity.

A grid of cells used to organize, calculate, and analyze tabular data.

Structured Query Language, used to define, query, and manipulate relational data.

A formatter that makes SQL syntax more readable and consistently spaced.

The process of formatting SQL for readability.

Service Set Identifier, the name identifying a Wi-Fi network.

Secure Sockets Layer, the predecessor name for TLS-encrypted connections.

A value describing the current condition or outcome of an operation.

A timer that measures elapsed time from an explicit start to a stop.

A continuous sequence of data, events, or media processed over time.

A measure of resistance, quality, intensity, or security.

A sequence of text characters treated as a single value.

A document containing presentation rules for a markup or UI language.

A logical subdivision of an IP network.

Scalable Vector Graphics, an XML-based format for vector images.

A character or token representing a value, operation, or concept.

A collection of characters or tokens representing values or operations.

To keep multiple representations or values aligned with one another.

The grammar and punctuation rules that define valid source or data notation.

Data arranged in rows and columns, or a structured tabular representation.

Markup labels or metadata labels attached to content.

Transmission Control Protocol, a reliable connection-oriented transport protocol.

A voice-communication system or its associated number.

A measure of thermal state expressed on a defined scale.

A reusable structure containing placeholders for variable content.

A controlled check used to verify behavior, correctness, or compatibility.

Human-readable character data rather than binary structure.

A value representing an instant, interval, or clock measurement.

A component that measures or triggers an action after a time interval.

A value recording when an event occurred, usually as a date and time.

A discrete value representing a credential, session, claim, or lexical unit.

Multiple discrete values representing credentials, sessions, claims, or lexical units.

Tom's Obvious Minimal Language, a configuration format with readable key-value syntax.

Conversion from TOML configuration syntax to JSON data notation.

Conversion from TOML configuration syntax to YAML syntax.

Time-Based One-Time Password, a code derived from a secret and current time.

The rate at which data moves between two endpoints.

The study of relationships between angles and sides of triangles.

Tab-Separated Values, a delimited text format using tabs between fields.

Metadata that controls how a shared URL appears on Twitter or X.

Abbreviation for User-Agent, the client-identification string in an HTTP request.

User Datagram Protocol, a connectionless transport protocol with low overhead.

Unique Local Address, an IPv6 address intended for private local networks.

Universally Unique Lexicographically Sortable Identifier.

A parser that extracts the timestamp and identifier fields from a ULID.

To turn escaped character sequences back into their literal characters.

A universal character set and encoding standard covering scripts and symbols worldwide.

A combined representation that expresses multiple changes or structures in one form.

An IPv6 address range intended for private local network use.

A family of multiuser operating systems and the conventions originating from Unix.

Text written with letters in their uppercase forms.

Uniform Resource Identifier, a string identifying a resource by name or location.

Uniform Resource Locator, an address for locating a resource on a network.

A URL-wrapping security service that scans or protects links before forwarding them.

A software client that makes a request, commonly a browser or automated client.

An HTTP string identifying the requesting browser, device, or client.

Coordinated Universal Time, the reference time standard used for global timestamps.

A variable-length Unicode encoding that is compatible with ASCII for basic characters.

Universally Unique Identifier, a standardized 128-bit identifier.

A parser that inspects UUID structure, version, variant, or embedded fields.

Version 4, commonly referring to UUIDs generated from random or pseudorandom data.

To check whether data satisfies defined syntax, structure, or rules.

A component that checks data against defined syntax, structure, or rules.

Named values that can be referenced and assigned within a language or configuration.

Version Control System, software for tracking and coordinating changes to files.

A company or provider that supplies a product, component, or service.

Time-based visual media, usually composed of sequential frames and optional audio.

The visible portion of a document or application surface.

An editor that shows formatted or rendered content while it is being edited.

Software or data used to manage digital-asset accounts and their credentials.

A camera connected to or built into a computer.

Wired Equivalent Privacy, a deprecated Wi-Fi security protocol.

A Unix command that finds the executable path selected for a command name.

Spaces, tabs, line breaks, and other characters used to separate or align text.

A family of wireless local-area networking standards.

Wireless networking based on the IEEE 802.11 family of standards.

Whitespace-separated or linguistically identified units of text.

Wi-Fi Protected Access, a family of wireless network security protocols.

The WPA revision based on the stronger AES-based security protocol.

A newer WPA revision with modern authentication and stronger wireless security.

What You See Is What You Get: editing that displays content close to its final appearance.

Extensible Markup Language, a tagged text format for structured data.

YAML Ain't Markup Language, a human-readable data serialization format.

A formatter that applies consistent indentation and structure to YAML.

The process of formatting YAML for readability.

Conversion from YAML syntax to JSON data notation.

Conversion from YAML syntax to TOML configuration syntax.

Conversion from YAML data structures to XML markup.