For developers, on-call engineers & data analysts
Decode, diff and format data — without pasting it into some random site
JSON, JWT, Base64, URLs, hashes, diffs and color tools process in your browser. Use and preview without signup; if you request a file download while signed out, only the finished export is preserved temporarily through sign-in.
格式与解码
JSON、HTML、Base64、URL、JWT、哈希和差异对比工具。
JSON 美化
One-line API responses are impossible to scan. Paste or drop JSON to validate it, pretty-print at 2, 4, or 8 spaces, or minify it for production — instantly in your browser.
立即试用HTML 美化
Exported HTML is a wall of text. Paste or drop a file for consistent indentation you can actually read — or minify it to one line for production, instantly in your browser.
立即试用表格转 JSON / SQL
Re-typing table data into code is slow and error-prone. Paste CSV, TSV, pipe, or Markdown tables and get JSON, JSONL, or ready-to-run SQL INSERTs instantly in your browser.
立即试用Base64 编码器 / 解码器
Cryptic Base64 in logs and payloads slows you down. Decode to readable text or encode any text or file — URL-safe, UTF-8 safe, and instant in your browser.
立即试用URL 编码器 / 解码器
Percent-encoded URLs are unreadable, and hand-editing breaks them. Paste any string or full URL to encode or decode it correctly in component or full-URL mode, right in your browser.
立即试用哈希生成器
Verifying downloads shouldn't need a command line. Drop a file or paste text for instant SHA-1, SHA-256, SHA-384 and SHA-512 digests. Use and copy results free — no account needed.
立即试用JWT 解码器
Debugging auth means squinting at opaque tokens. Paste a JWT to see its decoded header, payload and expiry instantly — then copy locally. Free to use, with no account needed.
立即试用文本差异比较
Eyeballing two versions misses changes. Paste both texts and see every addition and deletion highlighted in split or unified view — then copy the result. Free to use, with no account needed.
立即试用文本工具
字数统计、大小写转换、Markdown 编辑器和乱数假文。
字数统计
Essay limits and character caps sneak up on you. Paste or type to see words, characters, sentences, paragraphs and reading time update live. Free to use and copy — no account needed.
立即试用大小写转换器
Retyping a caps-lock paragraph is misery. Paste text and switch between UPPERCASE, lowercase, Title, Sentence, camelCase, snake_case, and more in one click, right in your browser.
立即试用Lorem Ipsum 生成器
Blank layouts stall design reviews. Generate paragraphs, sentences, or words of lorem ipsum and paste them straight into your design or code — ready in a second.
立即试用Markdown 编辑器
Stop guessing how your README will render. Write or open any .md file, watch the live HTML preview update instantly, then export as HTML or Markdown. Editing stays in your browser.
立即试用Color Tools
Build palettes, explore color harmonies on the wheel, and look up what a color means.
调色板生成器
Picking colors that work together is slow guesswork. Press space to generate, lock what you like, and export PNG, CSS variables, or JSON in seconds.
立即试用色轮
Guessing at matching colors leads to clashing designs. Drag the wheel to get complementary, analogous, triadic, tetradic and square harmonies with copyable hex codes — free, with no account needed.
立即试用色彩含义
The wrong color sends the wrong message. Pick any color to see its psychology, symbolism, cultural meanings, brand examples and copyable pairings — free, with no account needed.
立即试用