Tools by task: calls, websites, finance, streaming, writing

Online tool sets by scenario: mic and camera checks before a call, JSON and Base64 for websites, VAT and percentages, streaming, security and writing.

01
Tools for video calls: mic, camera, speakers
Check microphone level, webcam and speakers in the browser before Zoom, Meet or Teams. No install, no account.
Microphone Webcam Speakers
Open
02
Tools for frontend: JSON, Base64, UUID, JWT, color
Format JSON, encode Base64, mint UUIDs, inspect JWTs, hash files and pick HEX/RGB. Local in the browser.
JSON Base64 UUID JWT SHA hash Color picker
Open
03
Tools for finance: VAT, percent, amounts in words
Add or extract VAT, compute discounts and spell amounts in words for invoices. Instant, no sign-up.
VAT Percentage Numbers in words
Open
04
Tools for streaming: mic, camera, screen
Check microphone, webcam and screen resolution or DPR before you go live. Browser-only, no install.
Microphone Webcam Screen
Open
05
Tools for security: passwords, JWT, UUID, SHA
Generate passwords with an entropy hint, decode JWT claims, mint UUIDs and SHA-256 files. Local only.
Passwords JWT UUID SHA hash
Open
06
Tools for writing: word count, case, translit
Count words and density, switch case or transliterate Cyrillic, spell amounts in words. Text stays on the device.
Words & characters Numbers in words Case and translit
Open
07
Tools for travel: distance, units, time zones
Haversine distance between coordinates, km/miles and °C/°F, plus Unix time to local date. Browser-only.
Distance Units Timestamp
Open
08
Tools for QA: browser, device, keyboard, mouse, reaction
Read User-Agent, CPU/GPU hints, and test keyboard, mouse, gamepad and reaction time in the browser before a session.
Browser Device Keyboard Mouse Gamepad Reaction
Open
09
Tools for photos: crop, compress, QR, watermark
Crop, resize, rotate, compress, watermark, merge, split, passport size, signature and QR. Most studios run locally.
Image parser Download from URL Mirror a photo Photo correction Crop photo Rotate photo Passport photo Digital signature Watermark Compress photo Resize photo QR code Merge images Split image
Open

Tools by task: calls, websites, finance, streaming, writing

Tools for video calls: mic, camera, speakers

Tools for frontend: JSON, Base64, UUID, JWT, color

Tools for finance: VAT, percent, amounts in words

Tools for streaming: mic, camera, screen

Tools for security: passwords, JWT, UUID, SHA

Tools for writing: word count, case, translit

Tools for travel: distance, units, time zones

Tools for QA: browser, device, keyboard, mouse, reaction

Tools for photos: crop, compress, QR, watermark

Tools by task: calls, websites, finance, streaming, writing

Tools for video calls: mic, camera, speakers

Tools for frontend: JSON, Base64, UUID, JWT, color

Tools for finance: VAT, percent, amounts in words

Tools for streaming: mic, camera, screen

Tools for security: passwords, JWT, UUID, SHA

Tools for writing: word count, case, translit

Tools for travel: distance, units, time zones

Tools for QA: browser, device, keyboard, mouse, reaction

Tools for photos: crop, compress, QR, watermark