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

Color Picker & Palette Generator — free online

HEX, RGB and HSL values plus harmonious palette ideas — click to copy. This Color Picker & Palette Generator 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 Color Picker & Palette Generator ↑ · Browse all 33 free tools · All tools list

How to use the color picker & palette generator

  1. Type or paste your input into the box above.
  2. The result updates instantly as you type in most text tools — no button to press.
  3. Use the copy button to take the output exactly as shown.
  4. Your text never leaves your device, so it is safe for drafts and snippets.

About this tool

Pick any colour to get its HEX, RGB and HSL values, then generate harmonious palettes — complementary, analogous, triadic and monochrome — the same colour-theory rules designers use. Click any swatch to copy its HEX code.

Great for picking website colours, presentation themes or matching a brand colour from a logo.

Frequently asked questions

What is the difference between HEX and RGB?
They describe the same colour: HEX is compact (#0E7A3F) for CSS/design tools; RGB lists red, green and blue channels (14, 122, 63).
How do I choose colours that go together?
Start from your main colour: analogous palettes feel calm and cohesive, complementary palettes feel bold and high-contrast.
Can I copy a colour from a photo?
Use your device's screenshot + any eyedropper app to get the HEX, then paste it here to build a palette around it.

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