GGenApps

Free online tools that run entirely in your browser

Calculators, image tools, PDF tools and generators — no sign-up, no file uploads to a server, no watermarks. Your files never leave your device.

Try: Image to 50 KB Passport Photo EMI Calculator QR Generator Typing Test
33 working tools 100% client-side processing 0 files uploaded Free — no sign-up, ever

All tools

No tool matches that search yet. Try “calculator”, “image”, “PDF” or “generator”.

Start with these

Editor's picks — the highest-value tools to try first

Why people use GenApps

Most tool websites upload your files to their servers, queue them, and sometimes keep copies. GenApps is built differently: every tool runs with JavaScript directly in your browser. Your passport photo, your PDF and your invoice data never leave your device — which is why the tools are instant, work on slow connections, and stay free.

The collection focuses on jobs people actually search for: compressing a photo to the exact kilobyte limit an application form demands (FPSC and PPSC want ≤30 KB, NADRA ≤50 KB), making a correctly sized passport photo at home, working out a loan EMI before visiting a bank, generating a GST-ready invoice, or checking a typing speed before a government job test.

Frequently asked questions

Are these tools really free?
Yes — every tool is free with no sign-up, no watermark and no daily limit. The site is supported by advertising, which is why we can keep file processing free.
Are my files uploaded anywhere?
No. Image compression, PDF merging, photo making and everything else happens locally in your browser. You can even disconnect from the internet after the page loads and the tools still work.
How accurate are the calculators?
They use the standard published formulas (reducing-balance EMI, compound interest, Naegele’s rule for due dates, Mifflin–St Jeor for calories) and show results to two decimals. They are planning estimates — for loans, taxes and health decisions, confirm final figures with your bank, tax authority or doctor.
Can I use these tools on my phone?
Yes. Every tool is mobile-first and works in any modern phone browser — useful when a form deadline hits and you only have your phone.

Related tools

Exact-KB Image Compressor — free online

Compress a photo to an exact size — 20, 30, 50 or 100 KB for online forms. This Exact-KB Image Compressor is completely free on GenApps: no sign-up, no watermark and no usage limit, and it runs 100% in your browser, so anything you enter stays on your device.

Open the Exact-KB Image Compressor ↑ · Browse all 33 free tools · All tools list

How to use the exact-kb image compressor

  1. Add your image using the upload box or drag and drop. Your file stays on your device — it is never uploaded.
  2. Choose your settings (target size, format or dimensions).
  3. Check the live preview and the before/after file sizes.
  4. Download the processed image. That is it — no account, no watermark.

About this tool

Online application forms often reject photos that are too large — FPSC and PPSC require ≤ 30 KB, NADRA and many visa portals require ≤ 50 KB. This compressor binary-searches JPEG quality (and scales dimensions if needed) until your file lands at or just under the target size.

Everything runs in your browser with the Canvas API — your photo is never uploaded, which matters for personal ID photos.

Frequently asked questions

Which size should I choose?
Use the exact limit your form states: 30 KB for FPSC/PPSC, 50 KB for NADRA, 100–200 KB for many university and job portals. When in doubt, the form's instructions page lists it.
Will the compressed photo lose quality?
At these small sizes a photo stays clear enough for ID and form use. Keep your original file separately for printing.
Why does the result say slightly under target?
The tool targets just below your limit so the form never rejects it for being 1 KB over.
Are my photos uploaded?
No. Compression happens 100% on your device.

Private by design

GenApps tools process everything locally in your web browser using JavaScript. Your files, photos and text are never uploaded to a server — close the tab and everything is gone. The only data our optional server features store is what you explicitly send us (a contact message, a tool rating or a newsletter email).

Related tools