NEWNinja Words
Guess the daily 5-letter word in six tries. New word every day, unlimited practice, 10 languages.
▶ PlayFree online games & handy tools
Quick browser games for a coffee break, and no-nonsense tools for everyday jobs: QR codes, word counts, images, passwords and code. Everything runs right in your browser.
- Free, no sign-up
- Phone, tablet & PC
- Nothing to install
Continue:
Games
Play instantly on phone or PC. Your progress is saved on your device.
NEW
NEW2048
Slide the tiles, merge equal numbers and reach 2048. Classic 4×4 plus 3×3, 5×5 and 6×6 boards, with undo.
▶ Play
Dots / Tochki
The classic squared-paper strategy game. Close a loop around your opponent’s dots to capture them.
▶ Play
Hen House Dash
Retro LCD handheld fun. Move the fox, catch every egg, and dodge the rabbit’s potatoes.
▶ Play
Gold Runner '94
Dig holes, trap the guards and grab all the gold in this DOS-style puzzle platformer.
▶ Play
Advertisement
Free online tools
Make, count, compress, generate and convert in one click. Free, fast and nothing to install.
QR code generator
Make QR codes for links, Wi-Fi, contacts, email and SMS. Add a logo, download PNG or SVG.
Word & character counter
Count words, characters and sentences as you type, with reading time and keyword density.
Image compressor & resizer
Shrink and resize JPG, PNG and WebP photos to a target size. Batch, zip and no upload.
Password generator
Create strong random passwords, memorable passphrases and PINs, with a strength meter.
JSON formatter & validator
Beautify and validate JSON with exact error lines, auto-fix and a tree view.
Base64 encode / decode
Convert text to Base64 and back in one click.
JSON minifier
Shrink JSON by stripping whitespace and line breaks.
JS, CSS & HTML minifier
Compress JavaScript, CSS, HTML, XML and XHTML for faster pages.
URL / URI encoder & decoder
Percent-encode text for URLs and query strings, or decode %20-style URLs back to text.
GUID generator
Generate GUIDs / UUIDs instantly and learn how they work.
WebP converter & watermark
Convert JPG, PNG and iPhone HEIC photos to WebP, with an optional watermark.
No tool matches that search. Try “qr”, “image” or “json”.
About Util.Ninja
Util.Ninja is a small collection of free browser games and practical online utilities. The games are written from scratch in plain HTML5 and work on phones, tablets and computers with touch, mouse or keyboard. The tools cover everyday jobs, from making QR codes, counting words, compressing photos and creating strong passwords to formatting JSON, Base64 and URL encoding and minifying code.
There is nothing to install and no account to create. Game progress and settings are saved only in your own browser.
Popular right now
- Ninja Words: the daily 5-letter word game in 10 languages
- 2048: slide and merge the number tiles
- Dots / Tochki: the classic squared-paper strategy game
- QR code generator: links, Wi-Fi and contacts
- Image compressor: smaller photos, no upload
Advertisement