Precision tools · 34 in the rack
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Popular now · JSON Formatter · Password Generator · Unit Converter · QR Code
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Six collections, one goal: solve your problem in a single click.
Developer Tools
Format, convert, encode & debug
12 free toolsText & Writing
Count, convert, compare & generate text
7 free toolsImages & Media
Generate QR codes & convert images
4 free toolsPDF Tools
Merge, split & extract pages
2 free toolsSecurity & Passwords
Strong passwords & secure hashing
2 free toolsCalculators & Converters
Convert units & crunch everyday numbers
7 free toolsPopular this month
The tools our visitors reach for most.
JSON Formatter & Validator
Format, minify and validate JSON in real time.
Developer ToolsBase64 Encoder & Decoder
Encode text to Base64 and decode it back instantly.
Developer ToolsWord & Character Counter
Count words, characters, sentences and reading time live.
Text & WritingQR Code Generator
Generate free, high-quality QR codes with custom colors.
Images & MediaImage Resizer
Resize images online to exact pixels or percentages.
Images & MediaStrong Password Generator
Generate cryptographically strong passwords with an entropy meter.
Security & PasswordsField notes
Latest guides
Short, practical articles — generated automatically from every tool in the toolbox.
JSON Formatter & Validator: Free Online Tool & Complete Guide
Free online JSON formatter and validator. Pretty-print, minify, sort and validate your JSON instantly with a clear, human-readable error report.
4 min readBase64 Encoder & Decoder: Free Online Tool & Complete Guide
Free online Base64 encoder and decoder. Convert text to Base64 or decode Base64 to plain text instantly, with URL-safe mode and file conversion support.
4 min readURL Encoder & Decoder: Free Online Tool & Complete Guide
Free online URL encoder and decoder. Percent-encode special characters, decode malformed URLs and safely build query strings for APIs and redirects.
3 min readHash Generator (SHA-1, SHA-256, SHA-512): Free Online Tool & Complete Guide
Free online hash generator. Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text or file instantly, locally in your browser with Web Crypto.
4 min readUUID v4 Generator: Free Online Tool & Complete Guide
Free UUID v4 generator. Create one or hundreds of cryptographically random version 4 UUIDs instantly, with uppercase, braces and bulk download options.
3 min readUnix Timestamp Converter: Free Online Tool & Complete Guide
Free Unix timestamp converter. Convert timestamps (seconds or milliseconds) to human-readable dates and times, or any date back to a Unix timestamp.
3 min readShip log
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