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TextArray1.41.0

Developer tools

Small utilities for builders: hashes, JWTs, regular expressions, timestamps, slugs, QR codes and schema generators. No API calls and no rate limits here.

.env file diffnewCompare two .env files and list the variables that are missing or differ.
.env file validatorCheck .env variable lists for bad keys, missing quotes and duplicates.
.gitignore rule testernewCheck which of your .gitignore rules ignores or allows each path, and why.
.htaccess generatorBuild an Apache .htaccess file with HTTPS redirects, www rules, Gzip, caching and access blocks.
Access log analyzernewSummarize Apache and Nginx access logs into top paths, status codes, IPs and browsers.
ads.txt validatornewCheck an ads.txt file for syntax errors, duplicate entries and missing fields.
AI chat log parserCleans a pasted ChatGPT or Claude transcript into a tidy user/AI dialogue.
ANSI color code generatornewWrap text in ANSI escape codes to color and style it in a terminal.
Apple plist to JSONnewConvert an Apple XML property list to JSON, and JSON back to a plist.
Array to textnewParse a JavaScript, Python, PHP, JSON or SQL array literal and list its items as plain text.
ASIN / SKU extractorPull Amazon ASIN and SKU-like product codes out of raw text or data exports.
Aspect ratio calculatorReduce any width and height to its aspect ratio, name it and solve missing sides.
ASS/SSA to SRT converternewConvert Advanced SubStation Alpha or SSA subtitles to plain SRT.
Basic auth header generatorBuild or decode an HTTP Basic Authorization header from a username and password.
BBCode to HTML converterConvert BBCode from forums into clean HTML markup.
Bcrypt generatorHash passwords with bcrypt or verify a password against an existing bcrypt hash.
Bilingual subtitle mergernewCombine two subtitle files into one dual-language track, original above translation.
Breadcrumb schema generatornewTurn a list of page names and URLs into a BreadcrumbList JSON-LD block.
Change CSV delimiterSwap the column separator in CSV data between comma, semicolon, tab and pipe.
Changelog generatornewTurn a pasted git log into a grouped, readable changelog.
Chmod calculatorConvert Unix file permissions between octal and rwx notation with a full breakdown.
Code to SVG imageTurn a code snippet into a syntax-highlighted image with a window frame and gradient background.
Color blindness simulatornewSee how a color looks to someone with color vision deficiency.
Color converterConvert colors between HEX, RGB and HSL, with alpha and a tint palette.
Compression size calculatornewSee how much smaller your text gets with gzip, deflate or brotli compression.
Contrast checkerCheck WCAG contrast ratios of color pairs, with AA and AAA verdicts and fix suggestions.
Conventional commit buildernewCompose a Conventional Commits message from a type, scope and description, or check existing messages for problems.
Cookie parserBreak a Cookie or Set-Cookie header into individual cookies, values and attributes.
Cron expression buildernewBuild a cron expression from simple options and see what it means and when it next runs.
Cron expression parserExplain a cron expression in plain language and preview its next run times.
Cron to systemd timernewTurn a cron expression into a ready-to-use systemd .timer and .service unit pair.
CSP header generatorBuild a Content-Security-Policy header from per-directive fields, ready to deploy.
CSP violation report parsernewTurn pasted CSP violation reports into a readable summary of which directives and sources are blocked.
CSS box-shadow generatornewBuild a CSS box-shadow value from offset, blur, spread and color, with multiple layers and presets.
CSS clamp() generatornewGenerate a fluid CSS clamp() value that scales smoothly between two viewport widths.
CSS color variable extractornewFind every color in your CSS and turn it into reusable custom properties.
CSS formatterBeautify minified or messy CSS into clean, indented, readable rules.
CSS gradient generatorGenerate CSS linear and radial gradient declarations with custom colors and angles.
CSS grid generatornewTurn a text layout sketch into a real CSS grid with named areas.
CSS inliner for emailnewMove CSS from a style block into inline style attributes so it survives in email clients.
CSS minifierMinify CSS by stripping comments and whitespace without touching your values.
CSS specificity calculatornewCalculate the specificity of CSS selectors and see which one wins.
CSS to JS object converterConvert CSS declarations to a React/JS inline-style object, and back again.
CSS unit converterConvert CSS lengths between px, rem, em, pt and % against any root font size.
CSV ⇄ JSON converterConvert CSV data to JSON and back, or turn it into a Markdown or HTML table.
CSV column validatorCheck that every row of a CSV or TSV file has the same number of columns as the header.
CSV profilernewScan a CSV and get per-column type, missing values, unique counts and top values.
CSV to Google Merchant XML feednewConvert a product spreadsheet into an XML feed Google Merchant Center accepts.
CSV to HTML tableTurn CSV data into clean HTML table markup with thead, tbody and escaped cells.
CSV to SQL INSERT generatorTurn CSV rows into ready-to-run SQL INSERT statements for any database.
cURL to code converterTurn a curl command into runnable Python, JavaScript or Node.js code.
Date extractorPull every date out of text and get a clean list, one per line.
DMARC report analyzernewTurn a DMARC aggregate report XML into a readable table of senders, results and policy.
DNS zone file generatornewTurn a plain list of DNS records into a BIND-style zone file.
docker run to ComposenewConvert a docker run command into a docker-compose.yml service, or the other way round.
docker-compose to Kubernetes manifestnewConvert docker-compose services into Kubernetes Deployment and Service manifests.
Dockerfile generatornewBuild a production-ready Dockerfile for your language, with multi-stage builds and sane defaults.
Domain extractorPull clean domain names out of any text full of links and e-mail addresses.
Email extractorPull every email address out of a block of text and get a clean list.
Email header analyzernewTrace an email’s delivery path and check its SPF, DKIM and DMARC results.
Env to JSONConvert environment variable files into structured JSON objects.
Event schema generatornewTurn event details into a schema.org Event JSON-LD block ready to paste into your page.
Excel formula translatornewTranslate Excel formulas between English and localized function names.
FAQ schema generatorTurn a list of questions and answers into FAQPage JSON-LD.
Few-shot prompt builderGenerate a blank few-shot Markdown template with numbered input/output example blocks.
File signature identifiernewIdentify a file's type from its raw header bytes using a magic-number database.
Front matter editornewSplit, validate and reformat the YAML front matter of a Markdown document.
GitHub Actions workflow generatornewAssemble a ready-to-use GitHub Actions workflow file from your triggers, language and steps.
Gitignore generatorBuild a .gitignore file from ready-made templates for languages, editors and operating systems.
Glob to regex converternewTurn glob patterns like *.js or **/*.test.ts into the matching regular expression.
GraphQL formatternewFormat or minify a GraphQL query, mutation, fragment or schema with consistent indentation.
GraphQL SDL to TypeScript typesnewConvert a GraphQL schema into matching TypeScript types, interfaces and enums.
HAR analyzernewBreak down a HAR file into method, status, size and timing per network call.
HAR file sanitizernewStrip auth tokens, cookies and secrets from a HAR file before sharing it in a support ticket.
HAR to curl converternewTurn every request in an exported HAR file into a runnable curl command.
Hash generatorGenerate MD5, SHA-1, SHA-256, SHA-384 or SHA-512 digests from any text.
Hash identifierGuess which algorithm produced a hash from its length, charset and prefix.
HCL to JSONnewConvert Terraform-style HCL configuration into equivalent JSON.
HMAC generatorCompute HMAC-SHA256, SHA-1, SHA-384 or SHA-512 signatures with a secret key.
HowTo schema generatornewTurn a list of steps into a schema.org HowTo JSON-LD block for rich results.
htaccess to Nginx converternewConvert Apache .htaccess rules into an equivalent Nginx configuration.
HTML accessibility checkernewScan an HTML fragment for issues that block screen readers and keyboard users.
HTML formatterPretty-print HTML with proper nesting indentation, without ever touching pre, script or style content.
HTML list to linesExtract text from HTML list items into plain lines.
HTML table to MarkdownConvert HTML tables to GitHub-flavored Markdown tables with alignment kept.
HTML to BBCode converterConvert HTML markup to BBCode for forum posts and signatures.
HTML to JSX converterTurn HTML markup into JSX you can paste straight into a React component.
HTML to Markdown converterTurn simple HTML markup into Markdown syntax, right in your browser.
HTTP header parserParse a pasted block of raw HTTP request or response headers into readable name/value pairs.
HTTP status code lookupFind HTTP status codes in text or a log and see the name, class and meaning of each.
Humans.txt generatorBuild a humans.txt credits file — TEAM, THANKS and SITE sections — from a simple list.
i18n key diffCompare two localization JSON files and list the translation keys missing from each.
ICS calendar parsernewTurn a pasted .ics calendar file into a readable list of events.
ICS generatorBuild a calendar event and get the .ics text to import anywhere.
Indented list to JSON treenewTurn an indented or bulleted list into a nested JSON (or YAML) tree, and back again.
INI ⇄ JSON converterConvert INI config files to JSON and back, right in your browser.
IP address converter (hex/dec/binary)Convert an IPv4 address between dotted, decimal (DWORD), hexadecimal and binary.
IP address extractorPull every IPv4 and IPv6 address out of logs, configs or any text.
IP subnet calculatorCalculate network address, broadcast, netmask and host range from CIDR notation.
JavaScript formatternewReformat JavaScript or TypeScript into consistent, readable code.
JavaScript obfuscatorTurn JavaScript source into a hex-encoded eval(unescape(...)) snippet that hides it from a casual read.
JSON diffCompare two JSON documents structurally and see every added, removed and changed value by its path.
JSON flattenerFlatten nested JSON into single-level dot-notation keys, or rebuild the nesting.
JSON Patch appliernewApply an RFC 6902 JSON Patch (or RFC 7396 merge patch) to a JSON document.
JSON Schema generatornewGenerate a JSON Schema from a sample JSON document, including types, nested objects and formats.
JSON Schema validatorCheck a JSON document against a JSON Schema and get a readable, line-by-line error report.
JSON size analyzernewSee exactly which keys and branches make a JSON document big.
JSON to .env converterTurn a JSON object into ready-to-use .env lines with clean uppercase keys.
JSON to C# classnewTurn a JSON sample into ready-to-use C# classes.
JSON to CSV converterTransform JSON arrays into properly formatted CSV files for spreadsheet programs.
JSON to Go structnewTurn a JSON sample into Go struct definitions with inferred types and tags.
JSON to GraphQL SDLnewTurn a JSON document into GraphQL types written in Schema Definition Language.
JSON to Java classnewTurn a JSON sample into Java classes, with nested types and generic lists inferred automatically.
JSON to Protobuf schemanewTurn a JSON sample into a Protocol Buffers .proto message definition.
JSON to Python dataclassnewTurn a JSON sample into typed Python classes — dataclass, Pydantic, TypedDict or NamedTuple.
JSON to Rust structnewTurn a JSON document into Rust structs ready for serde.
JSON to SQL CREATE TABLEnewTurn a JSON object or array of objects into a SQL CREATE TABLE statement.
JSON to TypeScriptGenerate TypeScript interfaces from a JSON document, with nested objects as named sub-interfaces.
JSON to XML converterConvert JSON data into XML format with indentation and custom root elements.
JSON to Zod schemanewGenerate a Zod validation schema and TypeScript types from a JSON sample, with format and enum detection.
JSON tree viewValidate JSON and render its structure as an indented tree so a large payload reads at a glance.
JSONL converterConvert between a JSON array of objects and JSONL / NDJSON, one object per line.
JSONPath extractorPull matching values out of a JSON document with a JSONPath or JSON Pointer expression.
JUnit XML report summarynewSummarize a JUnit XML test report: pass/fail/skip counts, durations and failure details.
JWT decoderDecode a JSON Web Token and read its header and payload — without verifying the signature.
JWT generatornewBuild and sign a JSON Web Token with HMAC, right in your browser.
Keyword auto-linkerTurn keyword mentions in an article into HTML links, one per keyword.
Kubernetes manifest overviewnewSummarize the resources, images and settings in a Kubernetes YAML manifest.
Lines to HTML listConvert line-separated text into properly formatted HTML list markup.
LLM context compressorShrink pasted text or code so it costs fewer tokens before you send it to an LLM.
LLM token and cost calculatorEstimate how many tokens a pasted text costs across popular LLM APIs.
llms.txt generatornewTurn a list of pages into an llms.txt file that large language models can read.
LocalBusiness schema generatornewBuild a schema.org LocalBusiness JSON-LD block from your business details.
Lockfile inspectornewList every package in a lock file with its exact version and whether it's a direct or transitive dependency.
Log entity extractornewPull every IP, domain, email, URL, path, timestamp, hash, UUID and MAC address out of a log in one pass.
Log timestamp normalizernewFind timestamps in pasted logs and rewrite them all in one format and timezone.
Mailto link generatorBuild a mailto link with recipients, cc, bcc, subject and a prefilled body.
Markdown inline and reference linksnewConvert Markdown links and images between inline [text](url) and reference [text][1] style.
Markdown link extractorExtract all links from Markdown text and list them by URL, text, or both.
Markdown linternewFind broken links, skipped heading levels and unclosed code blocks in Markdown.
Markdown to HTML and backConvert Markdown to clean HTML source and turn HTML back into Markdown.
Markdown TOC generatorGenerate a linked table of contents from the headings of a Markdown document, with GitHub-style anchors.
Mermaid diagram generatornewTurn an indented list into a Mermaid flowchart, hierarchy graph or mindmap definition.
Meta tag checkerAudit the SEO and social meta tags in a page's HTML — no URL fetch, paste the source instead.
Meta tag generatorGenerate the HTML title, description, canonical, Open Graph and Twitter card tags for a page.
MIME type lookupLook up the MIME type for a file extension, or the usual extensions for a MIME type.
Mock JSON data generatorTurn a one-line-per-field schema into an array of realistic fake JSON records.
NGINX config generatornewBuilds a complete NGINX server block from your domain, TLS, proxy, caching and security-header options.
Nginx config to CaddyfilenewConvert an Nginx server configuration to an equivalent Caddyfile.
NMEA sentence parsernewDecode NMEA 0183 GPS sentences into readable, named fields.
npm ⇄ yarn ⇄ pnpm converternewConvert an npm, yarn, pnpm, bun or deno command to the equivalent command in another package manager.
OpenAPI endpoint listernewList every endpoint from an OpenAPI or Swagger document as a readable table.
OpenAPI to Postman collectionnewConvert an OpenAPI or Swagger document into a ready-to-import Postman v2.1 collection.
OpenAPI to TypeScript typesnewTurn an OpenAPI or Swagger document into TypeScript interfaces and types.
OpenSSL command buildernewAssemble a ready-to-paste openssl command line without running anything.
package.json dependency overviewnewSplit a package.json into production, dev, peer and optional dependencies with their version ranges.
PO to JSON converternewConvert a gettext .po translation catalogue to JSON, and back again.
Properties to JSON converterConvert Java .properties files to JSON and back, right in your browser.
Protobuf schema to TypeScript typesnewTurn a Protobuf schema into matching TypeScript interfaces, enums and unions.
QR code generatorTurn a URL or any text into a QR code you can download as SVG.
Query string builderConvert key-value pairs into a URL query string with proper encoding.
Recipe schema generatornewTurn recipe details into a ready-to-paste Recipe JSON-LD block.
Redirect rule generatornewTurn a list of old-URL/new-URL pairs into ready-to-use redirect rules.
Regex escapeEscape the characters with special meaning in a regular expression, so text matches literally.
Regex explainernewBreak a regular expression into plain-English steps, one piece at a time.
Regex from examplesnewTurn sample strings into a regular expression, and see which examples it matches.
Regex testerTest a regular expression against your text and see every match and capture group.
Robots.txt generatorBuild a correct robots.txt with presets, custom rules, crawl-delay and a sitemap link.
Robots.txt testernewCheck whether specific paths or URLs are allowed or blocked by a robots.txt file.
Ruby hash to JSONnewConvert a Ruby hash literal or pp/inspect output to JSON, or back.
Secret scannernewScan text, logs or configs for AWS, GitHub, Slack and Stripe keys, private keys, JWTs and other leaked secrets.
security.txt validatornewCheck a security.txt file against RFC 9116 and list what is missing, invalid or deprecated.
SemVer sorter and comparatorSort a list of version numbers by semantic versioning precedence.
SERP pixel width checkerEstimate the pixel width of a Google title or meta description and see if it fits before truncation.
Sitemap parsernewTurn a sitemap.xml into a readable URL list and check it for common errors.
Sitemap XML generatorTurn a plain list of URLs into a valid sitemap.xml, ready to upload.
Slack Block Kit buildernewTurn a plain text outline into ready-to-send Slack Block Kit JSON.
Slug generatorTurn titles into clean URL slugs without diacritics or punctuation.
Snowflake ID decodernewBreak a 64-bit Snowflake ID into its timestamp, machine and sequence fields.
Sort JSONSort the keys of a JSON object alphabetically, recursively and consistently.
SPF and DMARC checkernewCheck a pasted SPF, DMARC or DKIM DNS record and explain what each part means.
SPF and DMARC record generatornewBuild ready-to-paste SPF and DMARC DNS records from your senders and policy.
Split camelCaseSeparate camelCase and snake_case identifiers into individual words for readability.
SQL comment removerStrip -- line comments and /* */ block comments from SQL without touching string literals.
SQL CREATE TABLE to Prisma schemanewConvert SQL CREATE TABLE statements into Prisma schema models.
SQL dialect converternewRewrite SQL between PostgreSQL, MySQL, SQLite and SQL Server syntax.
SQL formatterFormat SQL queries with each clause on its own line, consistent indentation and uppercase keywords.
SQL insert statement generatorGenerate ready-to-run SQL INSERT statements from a column schema, without touching a real database.
SQL minifierCompress an SQL script by stripping comments and extra whitespace.
SQL schema diffnewCompare two CREATE TABLE schemas and generate the ALTER TABLE migration between them.
SQL schema to DBMLnewTurn CREATE TABLE statements into a DBML diagram definition.
SQL table and column extractornewList every table, join and column a SQL query reads, grouped by clause.
SQL to JSONConvert SQL INSERT statements into a JSON array of objects.
SSH config generatornewTurn a list of servers into ready-to-use Host blocks for ~/.ssh/config.
Stack trace formatternewClean up and re-indent a pasted stack trace so the frames that matter stand out.
Story branch checkerFind broken links and orphaned nodes in a branching story or dialogue tree.
Subtitle line wrapperRe-wrap subtitle dialogue to a maximum characters-per-line limit, timing preserved.
SVG URL encoderConvert SVG markup into a CSS-ready data URI and decode data URIs back to SVG.
Tailwind class sorternewSort utility classes in class/className attributes into Tailwind’s recommended order.
Terraform plan summarynewTurn a terraform plan output into a clear summary of what gets created, changed, replaced or destroyed.
Text to array converternewTurn a pasted list into an array literal in JavaScript, Python, PHP, JSON, SQL and more.
TOML to JSON converterConvert a TOML configuration document to JSON, right in your browser.
Tracking parameter removerStrip UTM tags and other tracking parameters from a URL and get a clean link.
Translation QA checkernewCompare an original text with its translation and flag errors that are wrong in any language.
TypeScript type to JSON SchemanewConvert a TypeScript interface or type alias into JSON Schema.
Unified diff analyzernewSummarize a unified diff or .patch file: files changed, lines added and removed.
Unused CSS selector findernewCompare a stylesheet against a page of HTML and list the selectors that match nothing.
URL defangerDefang and refang URLs, IPs and emails so links can't be clicked.
URL extractorPull every link out of text or HTML and get a clean list of URLs.
URL query parserExtract query-string parameters from a URL and view them as readable JSON.
URL validatorCheck a list of links and separate syntactically valid URLs from broken ones.
URLs to HTML linksTurn every bare URL in a block of text into a clickable HTML anchor tag.
User-agent parserDecode user-agent strings into browser, engine, OS and device type.
UTM link generatorAdd UTM campaign parameters to many URLs at once.
UUID decoderDecode a UUID to reveal its version, variant and embedded timestamp.
vCard generatorFill in contact details and get a .vcf contact card to import anywhere.
VTT ⇄ SRT converterConvert subtitles between WebVTT and SubRip in either direction, instantly.
Web app manifest generatornewBuild a valid manifest.json for your progressive web app from name, icons, colors and display options.
Webpack stats analyzernewFind which packages and modules take up the most space in a webpack build.
WhatsApp link generatorBuild a wa.me click-to-chat link from a phone number and an optional prefilled message.
WHOIS record parsernewExtract registrar, dates, nameservers and status codes from a raw WHOIS response.
WKT to GeoJSON converternewConvert Well-Known Text geometries to GeoJSON, and back, entirely in your browser.
X.509 certificate decodernewDecode a PEM certificate and inspect its subject, issuer, validity, extensions and fingerprint.
XML to JSON converterConvert XML into equivalent JSON, with attributes prefixed and repeated tags as arrays.
XPath evaluatornewRun an XPath 1.0 expression against pasted XML and see every match, its value and its path.
YAML ⇄ JSON converterConvert YAML to JSON and back — Kubernetes manifests, CI configs, OpenAPI specs.
YAML formatterValidate and reformat YAML, with clear line and column errors.

Developer tools

This is the workbench: a regex tester with live match highlighting, a JWT decoder that splits header, payload and signature, hash generation (MD5, SHA-1, SHA-256, SHA-512), QR code generation, CSV-to-JSON and CSV-to-HTML-table conversion, a slug generator, URL and email extractors, a UTM link builder, CSS and SQL minifiers, a color converter between HEX, RGB and HSL, and more.

The difference from most developer-tool sites is architectural: there is no backend. Every one of these tools is a pure function running in your browser tab. That means the JWT you decode — which often carries user IDs, emails and roles — never travels anywhere. The same goes for connection strings in an env file you convert, or the production CSV you turn into JSON. For anything covered by an NDA or a privacy policy, that is the whole ballgame.

No backend also means no rate limits, no login walls and no latency: tools respond as fast as your machine can compute, work offline once loaded, and never go down because someone's API did.