Free proxy, privacy & developer tools
A growing collection of fast, free utilities for working with proxies, networks and web data. Everything runs entirely in your browser — no signup, no tracking, nothing leaves your device.
Networking
- IP Address LookupCheck the geolocation, ISP, organization and ASN of any IP address.
- Subnet CalculatorTurn an IPv4 CIDR block into network, broadcast, mask and host range.
- IP Address ConverterConvert IPv4 between dotted-decimal, integer, hex and binary.
- User-Agent ParserDecode a user-agent string into browser, engine, OS and device.
Privacy
- Password GeneratorCreate strong, random passwords with a live entropy strength meter.
- Passphrase GeneratorGenerate memorable, high-entropy passphrases from random words.
- Random User-Agent GeneratorGenerate realistic, current user-agent strings for testing and scraping.
- Browser FingerprintSee what websites can detect about your browser, device and setup.
Security
- UUID & API Key GeneratorGenerate random v4 UUIDs and secure API keys in bulk.
- Password Strength TesterEstimate a password's entropy and how long it would take to crack.
- Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text.
- JWT DecoderDecode a JSON Web Token's header and payload and inspect its claims.
Scraping
Developer
- JSON Formatter & ValidatorPretty-print, minify and validate JSON, with clear error messages.
- Base64 Encode / DecodeEncode text to Base64 or decode it back, with full UTF-8 support.
- URL Encode / DecodePercent-encode text for safe use in URLs, or decode it back.
- Unix Timestamp ConverterConvert Unix timestamps to human dates and back, in any time zone.