Free · no account · runs in your browser
Free online tools that run in your browser
Hardware tests, developer tools and everyday tools. Check a microphone, decode a JWT or convert a recipe, with no account and nothing to install.
- 18
- free tools in one place
- 11
- languages, every tool fully translated
- 0
- accounts or sign-ups needed
- 100%
- in your browser, nothing to install
01 — Hardware tests
Check your screen, speakers, microphone, camera, keyboard and mouse.
Microphone test
Test your microphone with live waveform visualization and volume meter
Speaker test
Test your speakers and audio output with various tones and sounds
Webcam test
Test your webcam with live preview, resolution info, and FPS meter
Keyboard test
Test your keyboard keys with visual feedback and key information
Mouse test
Test your mouse buttons, scroll wheel, and movement with visual feedback
Dead pixel test
Test your screen for dead, stuck, or defective pixels with multiple colors
White screen
A full white screen to clean your display or test for dead pixels
02 — Developer tools
Encode, decode, schedule and clean up text and data.
Base64 encoder
Encode text or files to Base64 format
Base64 decoder
Decode Base64 encoded text or files
JWT decoder
Decode and inspect JSON Web Tokens (JWT) with detailed claim analysis
Unix timestamp converter
Convert between Unix timestamps and human-readable dates
Cron expression explainer
Parse and explain cron expressions with next scheduled run times
Remove text formatting
Paste text from a website or ChatGPT, then copy it as plain text for Google Docs or any other app.
03 — Everyday tools
Convert units, draw diagrams, time your work and look up symbols and plugs.
Unit converter
Convert units, portions, clothing sizes, mattress sizes, and more
Sankey diagram maker
Draw flow diagrams for your budget, energy use or any other data, then export them as PNG or SVG.
Laundry symbols
Decode laundry care symbols on clothing labels to properly care for your garments
Power plugs and voltage by country
Find plug types, voltage and frequency for 121 countries, and check whether you need a travel adapter.
Pomodoro timer
A plain Pomodoro timer with work sessions, short and long breaks, and a sound when time is up.
04 — Full Human Tools
Small tools, no accounts
Full Human Tools is a set of 18 free tools, each available in 11 languages. You do not need an account, and there is nothing to install. The hardware tests check a microphone, speakers, a webcam, a keyboard, a mouse or a screen, from a dead pixel test to a plain white screen. The developer tools encode and decode Base64, decode JWTs, convert Unix timestamps, explain cron expressions and strip formatting from pasted text. The everyday tools convert units and clothing sizes, draw Sankey diagrams, run a Pomodoro timer and look up laundry symbols or plug types by country. What you type, record or paste is processed in your browser tab and is not uploaded.