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

Salary Tax Calculator — free online

Take-home pay after income tax — US federal brackets, flat-rate and custom slabs. This Salary Tax Calculator 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 Salary Tax Calculator ↑ · Browse all 33 free tools · All tools list

How to use the salary tax calculator

  1. Enter your numbers in the fields above — use the exact figures from your loan, investment or bill for the most useful result.
  2. Press Calculate (most GenApps calculators also update as you type).
  3. Read the headline result together with the breakdown below it — totals, interest and schedules are shown, not just one number.
  4. Change any input and calculate again to compare scenarios side by side.

About this tool

Estimates income tax on a salary and your take-home pay. The built-in preset uses US federal brackets for a single filer, tax year 2025 (standard deduction $15,000). Two flexible modes are included: a single flat rate, and fully custom progressive slabs — enter your own country's brackets (for example from FBR or your local tax authority) as limit : rate% lines.

State/local taxes, social contributions (Social Security, EOBI etc.), credits and allowances are not included unless you build them into custom slabs — treat results as planning estimates and file by your authority's official tables.

Frequently asked questions

What is the difference between marginal and effective tax rate?
Your marginal rate is the rate on your last dollar earned (your top bracket). Your effective rate is total tax ÷ total income — always lower under progressive brackets.
Does it include state or provincial tax?
No. The US preset is federal only. Use custom slabs to model additional taxes approximately by adding your state rate to each bracket.
How do I use Pakistan or India slabs?
Choose “Custom progressive slabs” and type the official slabs for your tax year, one per line, like “600000 : 0” then “1200000 : 1”. Always copy rates from the current official source.

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