Orpheus Tools
Toolsthatneverseeyourfiles.
Converters and calculators that run inside your browser. Your documents never touch a server — not ours, not anyone’s.
Verified: zero network requests during processing.
How it works
Every other converter uploads your file. We compile the codec into the page instead.
- 01
The page loads
And with it the code that does the work — WebAssembly and your browser's own codecs, compiled into the page.
- 02
You add a file
It is read from disk into memory on your machine. No request is made. You can watch the network tab stay empty.
- 03
The result appears
Encoded locally and handed straight back to you. There was never a copy on anyone else's computer.
Calculators
Answers with a reading, not just a number.
- BMI CalculatorBody Mass Index from your height and weight, worked out instantly.
- BMR CalculatorThe calories your body burns doing nothing at all.
- Body Fat CalculatorThe US Navy tape method — what BMI cannot tell you.
- Ideal Weight CalculatorFour clinical formulas, side by side, rather than one false number.
- Age CalculatorExact age in years, months and days — and when the next birthday lands.
- Date Difference CalculatorHow long between two dates, counted every useful way at once.
Image & file tools
Convert and compress without an upload.
- Image ConverterJPG, PNG and WebP, converted on your own machine.
- PNG to JPG ConverterShrink oversized PNG screenshots into shareable JPGs.
- JPG to PNG ConverterMove a JPG into a lossless format before you edit it.
- WebP to JPG ConverterTurn a WebP that nothing will open into a JPG that everything will.
- JPG to WebP ConverterCut roughly a third off your image weight without visible loss.
- WebP to PNG ConverterOpen a WebP anywhere — and keep its transparency intact.
What that buys you
Nothing was uploaded. There is nothing for us to lose, leak or sell.
- Private
- Processed on your device. Nothing is uploaded, so there is nothing for us to keep.
- No signup
- No account, no email, no verification step between you and the tool.
- No watermark
- The output is your file. We do not brand it or hold quality back.
- No queue
- Your machine does the work, so there is no server to wait behind.
24 tools live and growing. How it is built.
Every file tool
All tools- Image ConverterJPG, PNG and WebP, converted on your own machine.
- PNG to JPG ConverterShrink oversized PNG screenshots into shareable JPGs.
- JPG to PNG ConverterMove a JPG into a lossless format before you edit it.
- WebP to JPG ConverterTurn a WebP that nothing will open into a JPG that everything will.
- JPG to WebP ConverterCut roughly a third off your image weight without visible loss.
- WebP to PNG ConverterOpen a WebP anywhere — and keep its transparency intact.
- PNG to WebP ConverterShrink a PNG dramatically without giving up its transparency.
Every calculator
All calculators- BMI CalculatorBody Mass Index from your height and weight, worked out instantly.
- BMR CalculatorThe calories your body burns doing nothing at all.
- Body Fat CalculatorThe US Navy tape method — what BMI cannot tell you.
- Ideal Weight CalculatorFour clinical formulas, side by side, rather than one false number.
- Age CalculatorExact age in years, months and days — and when the next birthday lands.
- Date Difference CalculatorHow long between two dates, counted every useful way at once.
- Days Until CalculatorCount down to a date — in days, weeks and working days.
- Working Days CalculatorBusiness days between two dates, with your own holidays subtracted.
- Loan CalculatorWhat the monthly payment is, and what the loan really costs.
- Mortgage CalculatorThe whole monthly cost — not just the part the lender quotes.
- Compound Interest CalculatorWhat regular saving actually turns into, and how much of it is growth.
- Percentage CalculatorFour different percentage questions, without guessing which formula.