For developers, on-call engineers & data analysts
Free Online Developer Tools — JSON, Base64, JWT, Hash and Diff
JSON, JWT, Base64, URLs, hashes, diffs and color tools process in your browser. Use, copy and download their finished exports without creating an account.
Format & Decode
JSON, HTML, Base64, URL, JWT, hash and diff tools.
JSON Prettify
Validate JSON, format it with 2, 4 or 8 spaces, or minify it in your browser.
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HTML Prettify
Format HTML with consistent indentation or minify it to one line in your browser.
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Table to JSON / SQL
Convert CSV, TSV, pipe-delimited or Markdown tables into JSON, JSONL or SQL INSERT statements in your browser.
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Base64 Encoder / Decoder
Encode text or files as Base64, or decode Base64 to supported text, with URL-safe and UTF-8 options in your browser.
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URL Encoder / Decoder
Encode or decode a string or full URL using component and full-URL modes in your browser.
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Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 digests from text or a file in your browser; no account is required.
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JWT Decoder
Decode a JWT header and payload, inspect its expiry and copy the decoded data locally; no account is required.
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Diff Checker
Compare two texts in split or unified view with additions and deletions highlighted; no account is required.
Try it nowText Utilities
Word count, case conversion, Markdown editor and Lorem Ipsum.
Word Counter
Count words, characters, sentences and paragraphs, and estimate reading time as you type; no account is required.
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Case Converter
Convert text between UPPERCASE, lowercase, Title, Sentence, camelCase, snake_case and other supported styles.
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Lorem Ipsum Generator
Generate a selected number of lorem ipsum paragraphs, sentences or words for a layout or prototype.
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Markdown Editor
Write or open a .md file, review the HTML preview and export as HTML or Markdown. Editing stays in your browser.
Try it nowColor Tools
Build palettes, explore color harmonies on the wheel, and look up what a color means.
Color Palette Generator
Generate 3–8 color palettes with harmony modes, lock and share colors, then export PNG, CSS variables, or JSON.
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Color Wheel
Use an interactive color wheel to find complementary, analogous, triadic, tetradic, and square harmonies with copyable HEX codes.
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Color Meanings
Explore color meanings, psychology, symbolism, cultural context, brand examples, and suggested pairings for any HEX value.
Try it nowWatch each transformation land
Every photo crosses the slash untouched and comes out the other side finished.
