Free Online Tools
A growing collection of fast, privacy-friendly utilities for networking, development, and everyday tasks. Everything runs in your browser — no sign-up, and nothing you enter is uploaded.
What Is My IP
See your public IP address, location, ISP, timezone, and more.
Open tool→Internet Speed Test
Measure your download and upload speed instantly.
Open tool→VoIP Bandwidth Calculator
Bandwidth per call and SIP trunk sizing for G.711, G.729, Opus and more.
Open tool→SIP Code Lookup
Search any SIP response code and see what it really means in practice.
Open tool→Subnet Calculator
Get the network, broadcast, host range, and masks for any IPv4 subnet.
Open tool→Password Generator
Create strong, random, secure passwords with custom options.
Open tool→Hash & Encoder
Base64, URL encoding, and MD5 / SHA-256 / SHA-512 hashes.
Open tool→JSON Formatter
Beautify, minify, and validate JSON with clear error messages.
Open tool→Timestamp Converter
Convert between Unix epoch time and human-readable dates.
Open tool→Word Counter
Count words, characters, sentences, and reading time live.
Open tool→URL Encoder / Decoder
Percent-encode or decode URLs and query strings safely.
Open tool→JWT Decoder
Decode JSON Web Token headers, payloads and expiry locally.
Open tool→UUID Generator
Generate cryptographically random UUID v4 values in bulk.
Open tool→Text Case Converter
Convert text between camelCase, snake_case, Title Case and more.
Open tool→Image Converter
Convert PNG, JPG and WebP with adjustable quality.
Open tool→PDF Tools
Merge PDFs or turn images into a PDF, privately in your browser.
Open tool→Free tools that respect your privacy
Every tool on this page runs entirely in your browser using native web technologies. That means they're fast, work without an account, and never send your input — passwords, text, JSON, or IPs — to a server. They're built for developers, system administrators, students, and anyone who needs a quick, reliable utility without the clutter of ads-heavy alternatives.
What you'll find here
- Networking — subnet calculator, IP lookup, and an internet speed test.
- Development — JSON formatter, Base64 / URL encoder, hash generator, and a Unix timestamp converter.
- Security — a cryptographically secure password generator.
- Writing — a live word and character counter.
We add new tools regularly. Looking for in-depth guides instead? Browse our latest articles on Linux, networking, and VoIP.