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Format, validate, debug and transform code and structured data.

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165 Tools

  1. .gitignore GeneratorBuild a .gitignore from common stacks and environments like Node, Python and macOS.Developer Tools
  2. .htaccess Domain Redirect Rule BuilderCreate reviewed host-scoped Apache redirect snippets with path preservation and temporary or permanent responses.Developer Tools
  3. AES Text Encryption & DecryptionEncrypt text locally with AES-256-GCM and password-based keys; export a portable encrypted message.Developer Tools
  4. AI Code Review & Explanation AssistantReview pasted code for likely bugs, edge cases and test ideas without executing it.Developer Tools
  5. AI Prompt GeneratorBuild well-structured prompts for Claude, ChatGPT or Gemini with the Role–Task–Context–Format method.Developer Tools
  6. AI Token CounterEstimate how many tokens your text uses and whether it fits Claude, GPT or Gemini context windows.Developer Tools
  7. Animated Text Effects & Gradient Text GeneratorDesign gradient, shimmer, typewriter, rotating, morphing, reveal and staggered text effects, then export production-ready CSS, HTML, React code or PNG.Developer Tools
  8. Archive Extractor & TAR To ZIP ConverterOpen ZIP, TAR, TAR.GZ, TGZ and GZ archives locally, inspect their files and download one entry or repack everything as ZIP.Developer Tools
  9. Aspect Ratio CalculatorCalculate dimensions, compare contain or crop framing, animate between formats and export a production resolution ladder.Developer Tools
  10. Audio Data Rate, Network & Room Acoustics CalculatorPlan PCM storage, Dante/AES67-style network fabrics, packet flows, wavelength and preliminary room-mode behavior in one engineering desk.Developer Tools
  11. AV IP Address Schedule & VLAN Table GeneratorGenerate CIDR-safe IPv4 device schedules that exclude gateway and reserved ranges, flag conflicts and document VLAN assignments.Developer Tools
  12. AVoIP Bandwidth & Switch Capacity PlannerModel video-flow bandwidth, compression, network overhead, redundancy and switch-fabric headroom for AV-over-IP designs.Developer Tools
  13. Barcode GeneratorGenerate Code 128 and EAN-13 barcodes from text or numbers and download them as PNG or SVG.Developer Tools
  14. Base32 Encode & DecodeEncode text to RFC 4648 Base32 and decode Base32 back to readable text.Developer Tools
  15. Base64 Encode & DecodeEncode text to Base64 and decode Base64 back to readable text.Developer Tools
  16. Bcrypt Generator & VerifierGenerate salted bcrypt password hashes and verify a password against an existing bcrypt hash, in your browser.Developer Tools
  17. Binary Code TranslatorConvert text to binary and binary back to text.Developer Tools
  18. Binary To Text ConverterDecode complete 8-bit binary bytes into UTF-8 text with strict input validation.Developer Tools
  19. Bitwise Calculator & Bit InspectorInspect exact 8–64-bit logic, shifts, signed values and interactive binary words.Developer Tools
  20. Border Radius GeneratorVisually set each corner's CSS border-radius with a live preview.Developer Tools
  21. Box Shadow GeneratorDesign CSS box-shadows with sliders and a live preview, then copy the code.Developer Tools
  22. Browser Information ToolInspect browser, display, device and connection capabilities in one private local report.Developer Tools
  23. Caesar Cipher ToolEncrypt and decrypt text with a Caesar shift cipher.Developer Tools
  24. camelCase ConverterConvert text and identifiers to camelCase.Developer Tools
  25. Chmod CalculatorBuild Unix and Linux file permissions visually and copy the matching octal chmod command.Developer Tools
  26. Code Difference CheckerCompare two text or code versions with a readable line-by-line added and removed view.Developer Tools
  27. Color Contrast CheckerCheck the WCAG contrast ratio between two colors and see AA/AAA pass or fail.Developer Tools
  28. Color Converter (HEX, RGB, HSL)Convert colors between HEX, RGB, HSL, HSV and CMYK with a live preview — paste any hex, rgb() or hsl() value.Developer Tools
  29. Color Mixer & CSS Color Name StudioBlend colors in sRGB or linear light, generate ramps and explore all 148 CSS named colors.Developer Tools
  30. Color Palette ExtractorExtract accurate photo, brand, screenshot or artwork palettes with contrast-aware swatches and professional exports.Developer Tools
  31. Color Palette GeneratorGenerate a palette of tints and shades from any base color, click to copy.Developer Tools
  32. Color PickerPick a color from any visible desktop app, screen, window, monitor, screenshot or local image.Developer Tools
  33. Contact (vCard) QR Code GeneratorCreate a QR code that saves your name, phone, email and details straight to a phone's contacts.Developer Tools
  34. Content Security Policy BuilderCompose a CSP response header with directive controls, report-only mode and warnings for broad sources.Developer Tools
  35. Conventional Commit Message GeneratorBuild conventional commits with scopes, breaking-change notices and issue references.Developer Tools
  36. Cron Expression ExplainerExplain any 5-field cron expression in plain English and preview its next run times.Developer Tools
  37. CSS Button GeneratorDesign a polished button with live hover, focus, active and disabled states, then export production-ready HTML and CSS.Developer Tools
  38. CSS Clamp CalculatorGenerate a fluid CSS clamp() value from minimum and maximum sizes and viewport widths, with a live preview.Developer Tools
  39. CSS Clip-Path Shape StudioBuild production-ready polygon, inset, circle and ellipse masks with visual editing, transforms, live imagery and reusable project files.Developer Tools
  40. CSS Design Token & Variable StudioCreate reusable CSS variables with light/dark values, a live preview and editable JSON projects.Developer Tools
  41. CSS Formatter & MinifierBeautify or minify CSS with custom indentation.Developer Tools
  42. CSS Gradient GeneratorCreate CSS linear gradients with a live preview and copy the code.Developer Tools
  43. CSS Grid & Flexbox Layout GeneratorBuild responsive grid and flex layouts with live previews, per-item sizing and clean HTML/CSS exports.Developer Tools
  44. CSS Selector Specificity CalculatorCompare selector specificity with modern pseudo-class support and readable ID/class/type scores.Developer Tools
  45. CSS Triangle GeneratorPoint a pure-CSS triangle any of 8 directions, size and color it, and copy the border-trick CSS with a live preview.Developer Tools
  46. CSV Cleaner & Data ProfilerClean CSV or TSV rows, normalize headers and text, remove blanks or duplicates, profile columns and export verified CSV, Excel or JSON reports.Developer Tools
  47. CSV To Excel ConverterTurn CSV or TSV data into a real .xlsx workbook in your browser — nothing uploads.Developer Tools
  48. CSV to JSON ConverterConvert CSV to JSON and JSON back to CSV with delimiter and header options.Developer Tools
  49. CSV to Markdown TableTurn CSV data into a formatted Markdown table.Developer Tools
  50. CSV to XML ConverterTurn CSV rows into clean, escaped XML with sanitized element names — headers optional, all in your browser.Developer Tools
  51. CSV to YAML ConverterConvert CSV rows into a YAML list keyed by your header row — quoted fields handled, nothing uploaded.Developer Tools
  52. dot.case ConverterConvert text and identifiers to dot.case.Developer Tools
  53. ENV to JSON ConverterConvert between .env files and JSON in both directions — handles quotes, comments and export prefixes.Developer Tools
  54. Excel To CSV ConverterOpen an .xlsx workbook locally, pick a sheet and export clean CSV with your choice of delimiter.Developer Tools
  55. Excel To JSON ConverterConvert a worksheet into JSON records keyed by its header row — parsed locally, never uploaded.Developer Tools
  56. EXIF ViewerSee the camera, exposure, date and GPS metadata hiding inside a photo — parsed locally, never uploaded.Developer Tools
  57. File Checksum CalculatorCalculate SHA-256, SHA-384, SHA-512 or SHA-1 checksums from a local file or text.Developer Tools
  58. File CompressorCompress files and folders into a real ZIP archive locally, with safe paths, progress, size comparison and no upload.Developer Tools
  59. File Extension LookupIdentify files across a broad standards-backed index, with detailed opening guidance for hundreds of common and specialist formats.Developer Tools
  60. File MIME Type CheckerVerify a file's real type from its magic bytes — detects 32 signatures locally and flags renamed or mislabeled files.Developer Tools
  61. Flowchart MakerDraw flowcharts and diagrams in your browser — drag-and-drop shapes, connect them with labeled arrows, style everything, or turn a text outline into a chart. Export to PNG, SVG or JSON. Free, no sign-up.Developer Tools
  62. Geographic Coordinate ConverterConvert latitude and longitude between decimal degrees, DMS and degrees/minutes. Validate batches, cross-check on a map and export CSV or GeoJSON.Developer Tools
  63. GeoJSON Map StudioValidate GeoJSON, summarize features and properties, preview geometry offline, and export clean minified or formatted files.Developer Tools
  64. GraphQL FormatterBeautify or minify GraphQL queries and schemas.Developer Tools
  65. Hash Generator & CheckerCompute MD5/SHA hashes of text or a file and compare them against an expected hash to verify integrity.Developer Tools
  66. Hex to Text ConverterConvert hexadecimal to readable text and text back to hex.Developer Tools
  67. HMAC GeneratorSign a message with a secret key — HMAC-SHA-1/256/384/512 signatures in hex and Base64, computed locally with Web Crypto.Developer Tools
  68. Hreflang Tag GeneratorBuild reciprocal language and region alternate tags with x-default, validation, HTML and PDF export.Developer Tools
  69. HTML & Markdown to PDF ConverterPaste or upload HTML or Markdown and download a paginated PDF, rendered privately in your browser.Developer Tools
  70. HTML Entity Encoder / DecoderEncode text to HTML entities (< & …) or decode entities back to plain text.Developer Tools
  71. HTML Formatter & MinifierBeautify or minify HTML with custom indentation.Developer Tools
  72. HTML to Markdown ConverterConvert HTML into clean Markdown.Developer Tools
  73. HTTP Cache-Control Policy BuilderBuild browser and CDN cache policies with explicit freshness, revalidation and privacy settings.Developer Tools
  74. HTTP Status Code Reference & ComparisonSearch registered HTTP status codes and compare response meanings with practical guidance.Developer Tools
  75. IP Subnet CalculatorInspect IPv4 and IPv6 networks, usable ranges, masks, address counts and smaller subnet plans from CIDR notation.Developer Tools
  76. IPv4 To IPv6 ConverterBuild IPv4-mapped, NAT64 and legacy 6to4 representations with custom /96 prefix support and clear usage notes.Developer Tools
  77. JavaScript Formatter & MinifierBeautify or minify JavaScript with custom indentation.Developer Tools
  78. JSON Formatter & MinifierBeautify, validate and minify JSON with clear parse errors.Developer Tools
  79. JSON Lines & NDJSON ExplorerValidate records line by line, filter data and export JSONL, a JSON array, CSV or a PDF report.Developer Tools
  80. JSON Patch Builder & Apply ToolGenerate RFC 6902 patches or apply six operation types to a copy of your JSON, with per-operation diagnostics.Developer Tools
  81. JSON Schema GeneratorInfer a readable Draft 2020-12 JSON Schema from representative example data locally.Developer Tools
  82. JSON Schema ValidatorValidate JSON locally against a clearly stated practical subset of JSON Schema.Developer Tools
  83. JSON Stringify TextConvert plain text into an escaped JSON string.Developer Tools
  84. JSON Structural Difference CheckerCompare JSON values by path while ignoring object key order and retaining type differences.Developer Tools
  85. JSON to Code & TypeScript Model GeneratorGenerate TypeScript, Go, Python, Java, C#, Rust, Swift and Kotlin models from JSON with nested types and optional fields.Developer Tools
  86. JSON to CSV ConverterConvert a JSON array of objects into CSV with a custom delimiter.Developer Tools
  87. JSON To Excel ConverterTurn a JSON array into a formatted .xlsx workbook with columns built from the object keys.Developer Tools
  88. JSON to TOML ConverterConvert a JSON object into TOML configuration format.Developer Tools
  89. JSON to XML ConverterConvert JSON objects and arrays into clean, indented XML.Developer Tools
  90. JSON to YAML ConverterConvert JSON to YAML and YAML back to JSON.Developer Tools
  91. JSON UnstringifierConvert an escaped/stringified JSON string back into readable JSON.Developer Tools
  92. JSON ViewerParse, validate and explore JSON in a collapsible, color-coded tree view.Developer Tools
  93. JSONPath Query & Path InspectorQuery JSON with property paths, wildcards, recursive descent, unions and slices without script execution.Developer Tools
  94. JWT DecoderDecode a JSON Web Token to inspect its header, payload claims and expiry — without sending it anywhere.Developer Tools
  95. JWT Generator & Signature VerifierSign HS256 JWTs and verify their signatures locally with explicit algorithm and time-claim checks.Developer Tools
  96. kebab-case ConverterConvert text and identifiers to kebab-case.Developer Tools
  97. Keyboard TesterInspect live keyboard values, hardware codes, modifiers, location and repeat behavior.Developer Tools
  98. LLM API Cost CalculatorEstimate what Claude, GPT or Gemini API usage will cost per call, per day and per month.Developer Tools
  99. Markdown FormatterTidy and normalize Markdown formatting.Developer Tools
  100. Markdown Table GeneratorBuild Markdown tables in a spreadsheet-style grid with per-column alignment.Developer Tools
  101. Markdown to HTML ConverterConvert Markdown into clean HTML — headings, lists, links, code, bold and more.Developer Tools
  102. MD5 Encrypt & DecryptHash text to MD5, or reverse-look-up common MD5 hashes back to their original value.Developer Tools
  103. MD5 Hash GeneratorGenerate an MD5 message digest from any text.Developer Tools
  104. Meta Tag GeneratorGenerate SEO and Open Graph / Twitter meta tags for your web pages.Developer Tools
  105. Mock API Response GeneratorBuild deterministic JSON fixtures from typed fields, response envelopes, HTTP statuses and reusable seeds.Developer Tools
  106. Morse Code TranslatorTranslate text to Morse code and Morse code back to text.Developer Tools
  107. Mouse TesterVerify pointer position, mouse buttons, double-clicks and wheel input in one event console.Developer Tools
  108. Node Workflow Studio SpacesConnect documents, file metadata, text, JSON and your own AI provider. Preview local media and inspect every step.Developer Tools
  109. Number Base ConverterConvert signed whole numbers exactly between bases 2 through 36.Developer Tools
  110. Number SorterSort numbers ascending or descending from comma, space or line-separated input.Developer Tools
  111. OpenAPI Specification ExplorerExplore API endpoints, methods, tags, parameters and responses from a local OpenAPI 3.x JSON document.Developer Tools
  112. PascalCase ConverterConvert text and identifiers to PascalCase.Developer Tools
  113. Password Strength CheckerTest how strong a password is and estimate how long it would take to crack — privately in your browser.Developer Tools
  114. Payment QR Code GeneratorCreate local QR codes for PayPal.Me, Venmo, Cash App, UPI, Zelle recipient details, Bitcoin or a provider-issued payment link.Developer Tools
  115. PoE Switch Power Budget & Redundancy CalculatorBudget class-allocated or measured device loads, cable loss, ports, switch capacity, heat and one-power-supply-failed operation.Developer Tools
  116. PX to REM ConverterConvert pixels to rem and em (and back) for any root font size, with a quick reference table.Developer Tools
  117. QR Code GeneratorCreate styled QR codes for URLs, text, email, SMS and calendar events, then export them for screen or print.Developer Tools
  118. QR Code ScannerScan and decode a QR code from an uploaded image or screenshot — right in your browser.Developer Tools
  119. Refresh Rate TestMeasure browser animation-frame timing and estimate the current display refresh rate.Developer Tools
  120. Regex Tester ToolTest regular expressions against sample text with live match highlighting.Developer Tools
  121. Robots.txt GeneratorBuild a robots.txt file to control crawlers, with sitemap and custom disallow rules.Developer Tools
  122. ROT13 Encoder/DecoderEncode and decode text with the ROT13 substitution cipher.Developer Tools
  123. RSA Key Pair GeneratorGenerate RSA public and private PEM keys locally with 2048, 3072 or 4096-bit key sizes.Developer Tools
  124. SCSS FormatterBeautify or minify SCSS with custom indentation.Developer Tools
  125. Secure Passphrase GeneratorBuild local cryptographic passphrases from a large English or custom word list, then inspect entropy, strength and expected guess time.Developer Tools
  126. Secure PIN GeneratorGenerate batches of cryptographic numeric PINs while filtering repeated-digit and simple sequential patterns.Developer Tools
  127. SERP Snippet PreviewDraft a search result, compare desktop and mobile widths, inspect likely truncation and export the matching meta tags.Developer Tools
  128. SHA Hash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text, computed securely in your browser.Developer Tools
  129. Sitemap & Robots Crawlability AuditorAudit robots.txt groups and sitemap XML locally, test paths, inventory URLs, find structural problems and export crawlability reports.Developer Tools
  130. Slugify URL GeneratorTurn any text into a clean, SEO-friendly URL slug.Developer Tools
  131. snake_case ConverterConvert text to snake_case or SCREAMING_SNAKE_CASE.Developer Tools
  132. Social Card PreviewSee how your link will look when shared on X, Facebook and LinkedIn — live card previews with your image, plus ready-to-paste meta tags.Developer Tools
  133. Spreadsheet Compare & ReconciliationMatch CSV or XLSX records by key, inspect changed cells, and export a precise reconciliation report.Developer Tools
  134. Sprite Sheet GeneratorPack up to 100 frames with animation preview, edge extrusion, pivots, atlas diagnostics and implementation-ready image, metadata, PDF and ZIP exports.Developer Tools
  135. SQL Formatter & MinifierBeautify or minify SQL with consistent keyword case and safe string-aware whitespace handling.Developer Tools
  136. SQL Insert GeneratorTurn CSV or TSV rows into escaped multi-row INSERT statements for PostgreSQL, MySQL, SQLite or SQL Server.Developer Tools
  137. SQLite Database StudioOpen SQLite files, explore tables and views, run SQL locally, and export databases or query results.Developer Tools
  138. Structured Data StudioGenerate Article, FAQ, Local Business, Product, Event and Breadcrumb JSON-LD in one maintained workspace.Developer Tools
  139. SVG Icon Sprite BuilderCombine SVG icons into a reusable symbol sprite with safe local previews, editable IDs, HTML snippets and a portable manifest.Developer Tools
  140. SVG Optimizer & MinifierOptimize SVG source with precision controls, multipass processing and before/after byte counts.Developer Tools
  141. Text To Binary ConverterEncode text as space-separated UTF-8 binary bytes and report byte and bit counts.Developer Tools
  142. Text To Word Document ConverterTurn plain text, Markdown, CSV or log copy into an editable Word document with local DOCX and PDF export.Developer Tools
  143. TLS Certificate InspectorOpen or paste X.509 certificates, inspect identity and validity, calculate SHA-256 and test a hostname against SAN or subject names entirely in your browser.Developer Tools
  144. Tokens To Words ConverterConvert an AI token budget into an adjustable word-count range, page estimate and reading time without claiming tokenizer precision.Developer Tools
  145. TOML to JSON ConverterParse TOML into formatted JSON with syntax errors and handling for date/time and large integer values.Developer Tools
  146. TOTP & HOTP Code GeneratorGenerate time-based or counter-based one-time codes with SHA-1, SHA-256 or SHA-512.Developer Tools
  147. TypeScript FormatterBeautify or minify TypeScript with custom indentation.Developer Tools
  148. ULID Generator & Timestamp InspectorGenerate up to 1,000 sortable identifiers and decode their timestamps, randomness and 128-bit values.Developer Tools
  149. Unicode Escape ConverterConvert text to \u Unicode escape sequences and back — handy for code and JSON strings.Developer Tools
  150. Unix Epoch ConverterConvert Unix seconds or milliseconds to UTC and local time, or convert a local datetime back.Developer Tools
  151. Unix Timestamp ConverterConvert between Unix timestamps (epoch) and human-readable dates in both directions.Developer Tools
  152. URL Encode and DecodePercent-encode URLs and decode percent-encoded strings.Developer Tools
  153. URL ParserBreak any URL into its protocol, host, path, query parameters and hash.Developer Tools
  154. User Agent ParserParse common browser, operating-system, engine and device markers from a user-agent string.Developer Tools
  155. UTF-8 Encoder/DecoderEncode text to UTF-8 byte sequences and decode them back.Developer Tools
  156. UTM GeneratorBuild campaign-tagged URLs with utm_source, utm_medium and more.Developer Tools
  157. Vigenère & ROT47 Cipher StudioEncode and decode classical ciphers while preserving punctuation and letter case.Developer Tools
  158. Website Accessibility Audit WorkspaceRun local static HTML checks for names, labels, landmarks, headings, images, IDs, tables and media, filter severity and export a WCAG-oriented review list.Developer Tools
  159. WhiteboardDraw, organize ideas, connect editable nodes and build visual plans in a private, portable canvas workspace.Developer Tools
  160. Wi-Fi Coverage, Capacity & AP Count PlannerCompare per-band RF coverage, SNR, client capacity, channel reuse, wired uplinks and PoE to estimate a survey-ready AP plan.Developer Tools
  161. Wi-Fi QR Code GeneratorCreate a QR code that connects phones to your Wi-Fi network automatically — no password typing.Developer Tools
  162. Word to Markdown & Text ConverterConvert a Word (.docx) document into clean Markdown or plain text, then copy or export the result.Developer Tools
  163. XML FormatterBeautify or minify XML with custom indentation.Developer Tools
  164. XML to JSON ConverterConvert XML documents into structured JSON, with attributes and nested elements preserved.Developer Tools
  165. YAML FormatterTidy and normalize YAML formatting.Developer Tools