Library / 36 utilities
All tools
Fast, focused utilities for files and data. Every tool runs locally in your browser.
01 / Data
Data tools
Inspect, format, and translate structured data.
8 utilities
JSON formatter
Validate, prettify, or minify JSON with precise error feedback.
JSON ⇄ YAML
Convert structured data between JSON and YAML in either direction.
CSV ⇄ JSON
Turn CSV tables into JSON records and convert arrays back to CSV.
XML formatter
Validate, indent, and safely normalize XML without changing content.
URL inspector
Break any URL into its origin, path, query, hash, and credentials.
Query string builder
Parse query parameters as JSON or build a query string from JSON.
Unix timestamp
Convert Unix seconds or milliseconds to readable local and UTC dates.
Number base converter
Convert integers between binary, octal, decimal, and hexadecimal.
02 / Encode & secure
Encode & secure tools
Encode payloads and generate cryptographic digests locally.
6 utilities
Base64 codec
Encode Unicode text or decode Base64 safely in your browser.
URL encoder
Encode or decode URI components, including spaces and Unicode.
HTML entities
Escape markup for HTML or decode named and numeric entities.
JWT decoder
Inspect JWT headers, claims, and expiry without sending the token away.
Hash generator
Create SHA-1, SHA-256, SHA-384, and SHA-512 text digests.
HMAC generator
Sign text with a secret using HMAC SHA-256 or SHA-512.
03 / Text
Text tools
Clean, compare, count, and reshape written content.
8 utilities
Text case converter
Switch text between title, sentence, camel, snake, kebab, and more.
Word counter
Measure words, characters, sentences, paragraphs, bytes, and read time.
Line toolkit
Sort, reverse, trim, number, shuffle, or deduplicate lines.
Text diff
Compare two texts line-by-line and highlight additions and removals.
Slug generator
Create clean, URL-friendly slugs with configurable separators.
Lorem ipsum
Generate placeholder words, sentences, or paragraphs at any length.
Markdown preview
Write Markdown and preview common headings, lists, links, and code.
Regex tester
Test JavaScript regular expressions and inspect every capture group.
04 / Generators
Generators tools
Create useful values, codes, and visual foundations.
5 utilities
UUID generator
Generate one or many RFC 4122 version 4 UUIDs instantly.
Password generator
Build strong passwords with cryptographic randomness and custom rules.
QR code generator
Generate downloadable QR codes for text, links, Wi-Fi, and more.
Color converter
Convert HEX colors to RGB and HSL with an instant visual preview.
Gradient generator
Design two-color CSS gradients and copy production-ready code.
05 / Images
Images tools
Convert, resize, inspect, and optimize images in-browser.
5 utilities
Image converter
Convert PNG, JPEG, and WebP images entirely on your device.
Image resizer
Resize images to exact dimensions while preserving aspect ratio.
Image compressor
Reduce JPEG and WebP file size with an interactive quality control.
Image inspector
Inspect image type, dimensions, aspect ratio, megapixels, and file size.
SVG to PNG
Render vector SVG markup or files to a crisp PNG at any scale.
06 / Documents
Documents tools
Build and reorganize PDF documents without uploading them.
4 utilities
Merge PDFs
Combine multiple PDF files in your chosen order into one document.
Split PDF
Extract a page range or every page from a PDF into new files.
Images to PDF
Arrange PNG and JPEG images into a downloadable PDF document.
Text to PDF
Turn plain text into a clean, paginated, downloadable PDF.