All tools
56 developer tools in 8 groups. Pick one below, or press ⌘K and paste your data — devprix opens the right tool.
Format & Validate10
Format, validate and inspect structured data.
JSON FormatterFormat, validate, minify, and inspect JSON with syntax highlighting and a tree view.JSON ValidatorValidate JSON syntax online. Check for errors with line numbers, format, minify, and explore with tree view.JSON Path EvaluatorEvaluate JSONPath expressions with live results, tree view, autocomplete, and filter support.JSON DiffCompare two JSON objects structurally. See added, removed, and changed values in a tree view.Data Format ViewerPaste JSON, XML, YAML, CSV, or .env — auto-detect format, view as tree, convert between formats.SQL FormatterBeautify, minify, and syntax-highlight SQL queries. Supports multiple dialects.Regex TesterTest regular expressions in real-time with match highlighting, capture groups, and a common patterns library.JWT DecoderDecode and inspect JSON Web Tokens. View header, payload, signature, and expiry status.Cron Expression ParserParse and build cron expressions visually. See next run times, plain English description, and cheat sheet.Text Diff CheckerCompare two texts side-by-side with line and character-level diff highlighting. Unified and split views.
Convert & Encode13
Move data between formats, encodings and units.
Timestamp ConverterConvert Unix timestamps to dates across all timezones with multiple output formats.Epoch ConverterConvert Unix epoch timestamps to human-readable dates and back. All timezones, multiple formats, live clock.Base64 Encoder & DecoderEncode and decode Base64 strings online. Supports text and UTF-8 encoding.URL Encoder & DecoderEncode and decode URLs, parse query strings, and build URLs with a visual parameter editor.String Escape / UnescapeEscape and unescape strings for JSON, HTML, XML, URL, SQL, regex, shell, Java, Python, and more.Image to Base64Convert images to Base64 data URIs. Drag & drop, batch upload, resize, and reverse Base64 to image.YAML / JSON ConverterConvert between YAML and JSON with validation, sorting, and presets for Docker, Kubernetes, and GitHub Actions.CSV to JSON ConverterConvert CSV to JSON and JSON to CSV instantly. Handles headers, custom delimiters, and large datasets.JSON to TypeScriptGenerate TypeScript interfaces, Zod schemas, or JSON Schema from any JSON. Smart type inference with optional fields.Markdown to HTMLConvert Markdown to HTML and back. Live preview with GitHub-flavored Markdown support.Curl to CodeConvert curl commands to Python, JavaScript, Go, Java, PHP, Rust, C#, and Ruby code.Number Base ConverterConvert between binary, octal, decimal, and hex. Bit visualization, two's complement, and bitwise operations.Color ConverterConvert between HEX, RGB, HSL with contrast checker, palette generator, and Tailwind CSS matching.
Generate9
IDs, secrets, hashes, tokens and test data.
UUID GeneratorGenerate UUIDs in all versions — v1, v3, v4, v5, v7, and Nil. Bulk generate with formatting options.Password GeneratorPasswords, passphrases, PINs, RSA/EC/Ed25519 key pairs, salts, SHA hashes, and API secrets.QR Code GeneratorGenerate QR codes for URLs, text, WiFi, email, phone, and vCards. Customize colors and download as PNG/SVG.Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes. File hashing, HMAC, and checksum verification.MD5 Hash GeneratorGenerate MD5 hashes from text or files instantly. Includes HMAC support and checksum verification.SHA-256 Hash GeneratorGenerate SHA-256 hashes from text or files. Includes file hashing, HMAC generation, and checksum verification.JWT BuilderCreate and sign JSON Web Tokens with HMAC-SHA256/384/512. Set claims, expiry, and verify signatures.Lorem Ipsum GeneratorGenerate placeholder text in multiple styles: classic, hipster, tech, and business. Export as plain text, HTML, or Markdown.Test Data GeneratorGenerate realistic fake data for testing: names, emails, addresses, phone numbers, and more.
Web & API6
Requests, URLs, status codes, meta tags and previews.
API TesterTest REST APIs in your browser. Send GET, POST, PUT, DELETE requests with headers, auth, and body.HTTP Status CodesSearchable reference for all HTTP status codes with explanations, common causes, and example responses.URL ParserParse any URL into its components: protocol, hostname, path, query parameters, and fragment.HTML Entity EncoderEncode and decode HTML entities. Searchable reference table with 80+ named, decimal, and hex entities.Meta Tag GeneratorGenerate meta tags for SEO, Open Graph, and Twitter Cards with live Google, Facebook, and Twitter previews.OG Preview / DebuggerPreview how your page appears on Google, Facebook, Twitter, Slack, Discord, LinkedIn, and WhatsApp.
DevOps & Config4
Containers, git, networking and permissions.
Docker Run to ComposeConvert docker run commands to docker-compose.yml and back. Supports all common Docker flags.Git Command BuilderBuild complex git commands visually. 18 commands with all options, explanations, and danger warnings.IP Subnet CalculatorCalculate subnet masks, network ranges, broadcast addresses, and divide subnets. IPv4 and IPv6 support.Chmod CalculatorInteractive Unix file permission calculator with visual grid, umask calculator, and common presets.
Text7
Transform, count and lay out text.
Case ConverterConvert text between camelCase, snake_case, kebab-case, PascalCase, UPPERCASE, and 15+ other formats.Slug GeneratorConvert titles to URL-friendly slugs with transliteration, custom separators, and bulk mode.Line ToolsJoin, split, sort, dedupe, filter, number, and transform lines of text. Multi-line to one-line and back.Word & Character CounterCount words, characters, sentences, and paragraphs. Readability score, keyword density, and case converters.Markdown Table GeneratorVisual table editor that outputs Markdown, HTML, CSV, JSON, and ASCII tables. Import from CSV or Excel.ASCII Art GeneratorConvert text to ASCII art with 8 font styles. Copy as code comments for any language.Percentage CalculatorCalculate percentages, tips, discounts, margins, and markups. Quick reference table and visual bars.
CSS & Design4
Visual CSS builders and lookups.
CSS Gradient GeneratorCreate beautiful CSS gradients visually. Linear, radial, and conic with color stops, presets, and Tailwind output.Box Shadow GeneratorDesign CSS box shadows visually with multiple layers, presets, and live preview.Favicon GeneratorGenerate favicons from images, text, or emoji. Download as PNG, ICO, or ZIP with all sizes.Tailwind CSS LookupLook up any Tailwind class to see its CSS. Reverse lookup: paste CSS to find the Tailwind class.
Reference3
Tables and cheat sheets.
ASCII TableFull ASCII character table with decimal, hex, octal, and binary values. Searchable with category filters.HTML Color NamesAll 140+ named CSS colors with swatches, hex, RGB values. Search, sort, and copy.Regex Cheat SheetSearchable regex reference with patterns, examples, and language-specific notes for JS, Python, Go, and Java.