The fast, private toolbox for everything tech.
38 free utilities for developers, IT pros, marketers and makers — format JSON, look up DNS, generate passwords, compress images and more. Your data never leaves your device.
Most popular tools
The utilities people reach for every day.
JSON Formatter & Validator
Beautify, minify, sort and validate JSON with exact error positions.
Base64 Encode / Decode
Encode text or files to Base64 and decode back — UTF-8 and URL-safe.
JWT Decoder
Inspect JSON Web Token header and payload, with expiry check.
Regex Tester
Test JavaScript regular expressions with live highlighting and groups.
Strong Password Generator
Cryptographically random passwords and memorable passphrases.
QR Code Generator
Custom-colour QR codes for URLs, Wi-Fi and text — PNG download.
What Is My IP Address
See your public IP, ISP, location and time zone.
DNS Lookup
Query A, AAAA, MX, TXT, NS, CNAME, CAA and more records.
Word & Character Counter
Words, characters, sentences, reading time and keyword density.
Image Compressor & Resizer
Compress and resize JPG/PNG/WebP on your device — batch.
Recently used
Browse by category
Organised the way you work.
Developer
Format, encode, decode, convert and debug — the daily toolkit for engineers.
15 tools →Security
Generate and audit passwords, hashes and QR codes without uploading a byte.
3 tools →Network & IT
IP, DNS, subnets, user agents and HTTP — diagnostics for sysadmins and support teams.
5 tools →Web & SEO
Meta tags, robots.txt and campaign links for marketers and site owners.
3 tools →Text & Writing
Count, clean, sort and generate text for docs, posts and data entry.
3 tools →Design & Images
Colors, contrast, gradients, shadows and on-device image compression.
6 tools →Calculators
Data sizes, download times and aspect ratios worked out instantly.
3 tools →Tools solve tasks. Experts solve projects.
When you need more than a utility — a new website, a cloud migration, a security review or an AI workflow — we'll match you with a vetted specialist and send a practical plan.
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- Vetted developers, IT, cloud and security pros
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Learn the fundamentals
Plain-English guides written by practitioners, each paired with a hand-picked video.
JSON Explained: A Practical Guide for Developers and Analysts
What JSON is, its six data types, common syntax errors, JSON vs XML vs YAML, and how to read, validate and transform JSON quickly.
Developer · 10 min readRegular Expressions for Beginners: Patterns You'll Actually Use
Learn regex from scratch: character classes, quantifiers, anchors, groups and lookarounds, with ten copy-ready patterns and common pitfalls.
Developer · 9 min readGit & GitHub Basics: The Commands That Matter
A practical introduction to Git and GitHub: commits, branches, merging, remotes, pull requests and the ten commands that cover daily work.
Network & IT · 8 min readHow DNS Works: From Typing a URL to Loading a Page
A clear walkthrough of the Domain Name System: resolvers, root and TLD servers, record types, TTL and caching, plus how to debug DNS problems.
Security · 8 min readPassword Security in 2026: What Actually Protects Your Accounts
Why length beats complexity, how attackers crack passwords, password managers, passphrases, passkeys and two-factor authentication explained.
Developer · 6 min readBase64 Explained: What It Is, How It Works and When to Use It
How Base64 encoding works bit by bit, why it adds 33% overhead, URL-safe Base64, data URIs, and the security myths to avoid.
Watch & learn
Curated videos from leading educators, embedded in privacy-enhanced mode.
Software directory
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Support the projectFrequently asked questions
Are the tools really free?
Yes. Every tool is free with no sign-up. The site is supported by advertising, sponsorships and voluntary donations.
Is my data uploaded?
No. Nearly every tool runs entirely in your browser. The only exceptions are the IP and DNS lookups, which query public services directly from your browser — we don't store results.
Can I suggest a tool?
Absolutely — use the contact form or submit it to the directory. Popular requests get built first.
Can you build something custom for my business?
Yes. Our Get Expert Help service matches you with vetted developers, IT and security specialists. The first consultation is free.