Converters
17Base64, URL and HTML-entity encoding, Unicode escapes, number bases with a bit-level view, Unix timestamps across time zones, byte and bandwidth units, and structured-data conversion between JSON, YAML, CSV, XML and TOML.
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Base64 Encode / Decode
Encode text, hex or any file to Base64 (and Base32, Base58) and decode back — with data URIs and image preview.
Unix Timestamp Converter
Convert Unix timestamps (s, ms, µs, ns) to dates and back, across time zones, with custom formats and code.
URL Encode / Decode
Percent-encode text with encodeURIComponent, encodeURI, form or RFC 3986 rules, decode multi-layer strings, and edit query strings in a table.
Number Base Converter
Convert between binary, octal, decimal, hex and any base 2–36, with a bit grid, bitwise ops and IEEE-754.
All converters
JSON to YAML
Convert JSON into clean YAML with control over quoting, wrapping, anchors and multi-document output.
YAML to JSON
Convert YAML into strict JSON, with multi-document streams, YAML-only types and duplicate keys handled.
JSON to CSV
Flatten JSON arrays into CSV with a table preview, column picker, nested-path selection and Excel options.
CSV to JSON
Parse CSV into JSON objects, arrays, columns or NDJSON with a table preview and type inference that keeps IDs intact.
XML to JSON
Convert XML to JSON and JSON back to XML, with attribute, text-node, namespace and array controls.
TOML to JSON
Convert TOML config to JSON and JSON back to TOML, with Cargo, pyproject and netlify presets.
HTML Entity Encode / Decode
Encode text to HTML entities with presets (minimal, attribute-safe, all non-ASCII) and decode all 2,000+ HTML5 named references.
Unicode Escape / Unescape
Convert text to \uXXXX, \u{…}, \x, U+, &#x…;, Python, Go or CSS escapes and back, and inspect every code point for invisible or look-alike characters.
Color Converter
Convert any CSS colour between HEX, RGB, HSL, HWB, LAB, LCH, OKLCH and P3, with contrast checks and ramps.
Markdown to HTML
Convert Markdown to clean HTML — fragment, full styled document or single line — with JSX export.
Image Converter & Base64
Convert, resize and compress images to PNG, JPEG, WebP or AVIF and encode or decode Base64 data URIs.
Byte / Data Size Converter
Convert data sizes between SI and binary units side by side, and calculate transfer times.
Text to Binary
Convert text or files to binary, hex, octal or decimal bytes and back, with a hex dump, per-character byte table and five encodings.