Welcome to NWS Tools
An elegant, private toolkit — 101+ formatters, editors, calculators and converters that run entirely in your browser. No sign-up, nothing uploaded, works offline.
Popular right now
View all →Background Remover
Cut out subjects with on-device AI.
QR Code Generator
Styled QR codes for links, wifi and more.
JSON Formatter
Format, validate, minify and tree-view JSON.
Merge & Split PDF
Combine files or pull pages apart, drag to reorder.
Password Generator
Strong passwords with a strength meter.
Word & Character Counter
Live counts, reading time and keyword density.
Code Formatter
Beautify or minify JSON, CSS, JS, SQL and XML.
Video Converter
Convert between MP4, WebM and MOV.
Browse by category
14 categories, 101+ tools.
Image
10Edit, convert, and clean up images — entirely in your browser.
PDF & Docs
9Merge, sign, compress and edit PDFs without uploading a thing.
Video
9Trim, convert and compress video locally with WebCodecs.
Audio
5Record, convert and clean up audio in the browser.
Text & Writing
12Transform, compare and clean up text fast.
Converters
5Convert units, data formats, currencies and time zones.
Developers
10The everyday format, encode and inspect toolkit.
SEO & Social
5Meta tags, previews and content checks for the web.
Calculators
9Everyday math, dates, health and grades.
Money & Finance
7Loans, mortgages, interest and paychecks.
Generators
6Codes, passwords, names and mock data.
Security & Privacy
6Encrypt, hash and scrub — all offline.
Time & Productivity
6Timers, notes and trackers that just work.
Reference
5US & world lookups, codes and quick facts.
These tools are free. Your next product doesn't have to be a compromise.
nihmathullah.com designs and builds premium software — the same craft behind these tools, applied to your website, app or CRM. Fast, private, and beautifully engineered.
- Marketing sites & landing pages
- Web apps & dashboards
- Custom CRMs & internal tools
- AI-powered products