Essential utilities for developers including JSON formatters, Base64 encoders, and decoders. No signup required.
Pretty print and beautify JSON.
Validate JSON syntax instantly.
Strip whitespace from JSON.
Compare two JSON payloads.
Escape or unescape JSON strings.
Alphabetically sort JSON keys.
Flatten nested JSON structures.
Rebuild nested JSON from flat keys.
Generate JSON Schema from samples.
Locate values via JSONPath.
Expandable JSON inspector.
Fix malformed JSON automatically.
Repair common JSON syntax errors.
Browse huge JSON safely.
Visual side-by-side JSON compare.
Extract all keys from JSON.
Generate TS interfaces from JSON.
Generate Go structs from JSON.
Convert JSON to XML markup.
Convert JSON documents into YAML.
Flatten JSON arrays into CSV.
Convert CSV rows into JSON.
Convert XML markup into JSON.
Convert YAML files into JSON.
Convert TOML config into JSON.
Convert tab-separated values to JSON.
Beautify and structure XML.
Validate XML syntax.
Validate YAML documents.
Clean up CSV formatting.
Render CSV in a table view.
Encode and decode Base64.
Encode and decode URLs.
Encode HTML entities.
Convert between text and hex.
Convert between text and binary.
Convert text to Unicode points.
Encode and decode UTF-8.
Inspect URL components.
Escape or unescape HTML.
Encode and decode Base32.
Encode and decode Base58.
Encode and decode Base85.
Apply the ROT13 cipher.
Browse the ASCII reference.
Look up Unicode code points.
Convert IDNs to Punycode.
Escape backslashes in strings.
Escape CSV special characters.
Encode quoted printable text.
Translate text and Morse code.
Convert files to data URIs.
Create SEO-friendly slugs.
Generate hashes from text.
Create bcrypt password hashes.
Generate UUIDs and ULIDs.
Measure password strength.
Inspect JWT payloads.
Sign and create JWTs.
Check JWT expiration.
Visualize JWT structure.
Verify RS256-signed JWTs.
Analyze token entropy.
Generate secure passwords.
Generate random API keys.
Compute SHA-512 hashes.
Compute SHA-256 hashes.
Compute SHA-1 hashes.
Compute MD5 hashes.
Generate HMAC signatures.
Compute CRC32 checksums.
Generate htpasswd entries.
Build Basic Auth headers.
Generate PKCE challenges.
Build OAuth authorization URLs.
Decode session tokens.
Verify file hashes.
Format API key strings.
Generate QR codes from text.
Decode QR codes from images.
Generate 1D/2D barcodes.
Decode barcode images.
Diceware-style memorable passphrases.
Compute Shannon entropy in bits.
Detect common patterns and weaknesses.
Check against a list of common passwords.
Estimate crack time by length.
Random PIN codes of any length.
Word + symbol blended passwords.
Compare two passwords side by side.
AES-GCM encrypt/decrypt in browser.
Generate RSA keypair in browser.
Generate ECDSA keypair in browser.
Classic shift cipher.
Polyalphabetic key cipher.
XOR-based stream cipher.
Zig-zag transposition cipher.
Hide messages in zero-width chars.
Validate JWT structure & claims.
Constant-time hash compare.
Validate CSP in browser.
Build SRI hashes for scripts.
Detect common API key formats.
Verify HS256-signed JWTs.
Beautify CSS code.
Minify CSS for production.
Design CSS box-shadows.
Experiment with flexbox layouts.
Build flexbox layouts visually.
Build CSS grid layouts.
Build grids with a visual editor.
Create CSS keyframe animations.
Experiment with CSS animations.
Build clamp() expressions.
Generate CSS loaders.
Design clip-path shapes.
Build CSS mask styles.
Create @counter-style rules.
Inspect CSS variables.
Sort Tailwind classes.
Merge conflicting Tailwind classes.
Convert CSS to Tailwind.
Design custom border radii.
Design CSS text shadows.
Generate CSS triangle shapes.
Tune CSS filter values.
Experiment with CSS transforms.
Create CSS custom properties.
Calculate selector specificity.
Convert between CSS units.
Design cubic-bezier easings.
Style custom scrollbars.
Generate organic SVG blobs.
Generate SVG wave dividers.
Generate SVG backgrounds.
Convert SVG to JSX components.
Edit SVG path data visually.
Build SVG filter effects.
Generate SVG clipPath shapes.
Convert between rem and px.
Calculate clamp() values.
Test responsive breakpoints.
Preview viewport sizes.
Beautify HTML markup.
Minify HTML output.
Live preview HTML snippets.
Convert HTML into JSX.
Convert HTML into Pug.
Lint HTML markup.
Generate HTML tables.
Browse HTML entities.
Audit HTML accessibility.
Inspect HTML DOM tree.
Generate ARIA attributes.
Inline styles into HTML.
Convert tables to divs.
Preview Open Graph cards.
Preview Twitter cards.
Beautify JavaScript code.
Minify JavaScript code.
Obfuscate JavaScript code.
Transpile ES6 to ES5.
Strip TS types to JS.
Try JavaScript in-browser.
Format JS array literals.
Convert JSON to JS object.
Convert JS object to JSON.
Build JavaScript regex.
Replace Lodash with native JS.
Visualize promise chains.
Sort JS/TS imports.
Convert between ESM and CJS.
Convert promises to async/await.
Generate debounce/throttle helpers.
Format JS stack traces.
Decode framework error codes.
Format GraphQL queries.
Validate GraphQL schemas.
Validate OpenAPI specs.
Test WebSocket connections.
Test regular expressions live.
Generate regex from samples.
Regex syntax reference.
Explain regex patterns.
Test regex replacements.
Browse common regex recipes.
Visualize regex flow.
Search regex cheatsheet.
Convert cron expressions to regex.
Format SQL queries.
Validate SQL syntax.
Minify SQL queries.
Beautify SQL queries.
Build SQL queries visually.
Generate SQL inserts from CSV.
Generate SQL inserts from JSON.
Convert SQL results to JSON.
Build MongoDB queries.
Convert between Mongo and JSON.
Format Prisma schemas.
Visualize database schemas.
Convert SQL to Mongo queries.
Map GraphQL to REST endpoints.
Parse user agent strings.
Parse URL query strings.
Build URL query strings.
Inspect HTTP headers.
Look up MIME types.
Calculate IP subnets.
Validate IPv6 addresses.
Preview shortened URLs.
Convert slugs to URLs.
Generate HTML meta tags.
Preview meta tag output.
Generate canonical URLs.
Generate robots.txt files.
Generate XML sitemaps.
Generate JSON-LD blocks.
Browse Schema.org types.
Browse HTTP status codes.
Browse MIME type list.
Inspect browser cookies.
Parse Set-Cookie headers.
Design form schemas.
Build UTM tracking URLs.
Generate CSP headers.
Generate hreflang tags.
Generate favicon meta tags.
Generate .gitignore files.
Format commit messages.
Bump semantic versions.
Clean .env files.
Generate branch names.
Build conventional commits.
Generate changelogs.
Pick an open-source license.
Scaffold README files.
Generate shields.io badges.
Check npm package names.
Compare two text blocks.
Diff code snippets.
Word-level diff viewer.
Merge diffs interactively.
Compare text by hash.
Sort text lines.
Deduplicate lines.
Convert tabs and spaces.
Fix indentation levels.
Switch between casing styles.
Track recent clipboard items.
Save and reuse snippets.
Clean pasted text.
Align text into columns.
Normalize Unicode strings.
Create code screenshots.
Generate placeholder text.
Generate fake user data.
Generate fake JSON data.
Generate fake SQL rows.
Browse keyboard shortcuts.
Validate package.json files.
Validate tsconfig.json files.
Validate docker-compose files.
Validate Kubernetes manifests.
Validate GitHub Actions workflows.
Format Terraform HCL.
Convert .env files to JSON.
Convert JSON to .env format.
Validate ESLint configs.
Generate PWA manifests.
Validate PWA manifests.
Inspect localStorage entries.
Manage localStorage entries.
Inspect sessionStorage entries.
Detect browser details.
Inspect JWTs from storage.
Browse IndexedDB stores.
Draw on an HTML canvas.
Experiment with WebGL shaders.
Test Web Worker scripts.
Inspect service workers.
Test Web Share API.
Test browser notifications.
Test Geolocation API.
Test device orientation.
Test Clipboard API.
Test Vibration API.
Check Battery API.
Test Network Information API.
Test screen orientation API.
Test PiP video API.
Live preview Markdown.
Render Markdown to HTML.
Format Markdown documents.
Generate Markdown TOC.
Convert HTML to Markdown.
Markdown syntax reference.
Count words in Markdown.
Validate Markdown links.
Embed images into Markdown.
Diff Markdown documents.
Format Markdown tables.