Hex ⇄ ASCII Converter
Convert Hex to ASCII and ASCII to Hex. Robust parsing (0x, \\x, spaces, commas), UTF-8/Latin-1, grouping & delimiters, hexdump, hashes, CRC32, entropy, and stats.
Upload a .txt to treat as text, or a binary file to parse its bytes.
Similar Tools
Similar Tools
Similar Tools
Similar Tools
Similar Tools
Base Converter
A powerful base converter that supports conversions between bases 2–36 (binary, octal, decimal, hex, and more). Features include auto-detecting input base, exact big-int math for integers, fractional support with configurable precision, two’s-complement helper, and bulk mode for converting multiple numbers at once. Runs entirely client-side for speed, privacy, and accuracy.
Base64 Image Converter
Convert images to Base64 (with preview) and decode Base64 back to images entirely client-side. Includes copy-ready HTML/CSS/Markdown snippets, line wrapping, automatic MIME detection/validation, and re-export to PNG/JPEG/WebP. Works offline for speed and privacy.
Image Base64 Optimizer
Reduce Base64 image size with client-side compression and resizing. Paste a Base64 string (raw or data URI) or upload an image, preview original vs optimized, adjust quality and dimensions, and copy the optimized Base64 instantly. Supports automatic MIME detection/validation and re-encoding to PNG/JPEG/WebP. Runs offline for speed and privacy.
Data URL Generator
Create and decode data: URIs from text or files. Set MIME/charset, choose base64 or percent-encoding, view live previews (images/HTML/SVG/JSON), generate ready-to-use snippets (<img>, CSS background, Markdown, <link>), make QR codes, batch decode, and optionally minify/sanitize — all in your browser.
JSON ⇄ CSV Converter
Convert JSON to CSV and CSV to JSON entirely in your browser. Supports NDJSON, schema detection, flattening nested objects to dotted paths, exploding/joining arrays, delimiter/quote/EOL/BOM options, previews (table/JSON), and fast chunked parsing for large files.
PHP ⇄ JSON Converter
Convert PHP array/object literals to JSON and back — no code execution. Supports short [] and long array() syntax, assoc vs stdClass output, pretty/minify with custom indent, JSONC (strip // and /* */), strict validation with line/column errors. 100% client-side.
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Made by someone who actually uses these tools daily. It’s fast, clean, and made with your workflow in mind, not corporate KPIs.