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.
- 50/30/20 Budget CalculatorThe three targets, and how far your actual spending sits from them.
- Pay Rise CalculatorWhat a raise is worth once inflation has taken its share.
- APR to APY CalculatorThe same rate compounded, and what the gap is actually worth.
- Date Add & Subtract CalculatorWhat date falls a given time from another, and which weekday.
- Rent vs Buy CalculatorThe year buying overtakes renting, once selling costs are counted.
- Mean, Median and Mode CalculatorAll three averages at once, and which one your data calls for.
Image & file tools
Convert and compress without an upload.
- Combine ImagesStack screenshots or lay out a contact sheet.
- Compress Image to a SizeUnder 200 KB, under 1 MB — whatever the form demands.
- Rotate and Flip ImageBaked into the pixels, not left in a flag.
- Square Image CropperFor a profile picture that is not squashed.
- Favicon GeneratorEvery size a browser asks for, from one image.
- Image CompressorSmaller file, same dimensions.
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.
173 tools live and growing. How it is built.
- Combine ImagesStack screenshots or lay out a contact sheet.
- Compress Image to a SizeUnder 200 KB, under 1 MB — whatever the form demands.
- Rotate and Flip ImageBaked into the pixels, not left in a flag.
- Square Image CropperFor a profile picture that is not squashed.
- Favicon GeneratorEvery size a browser asks for, from one image.
- Image CompressorSmaller file, same dimensions.
- 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.
- Flatten PDF FormBake the answers in so nobody can change them.
- Split PDF Into PagesEvery page as its own file, in one go.
- Add Watermark to PDFMark a draft as a draft, on every page.
- Resize PDF PagesOne paper size throughout, without stretching anything.
- Crop PDFTrim each edge by eye, in percentages that suit any page size.
- PDF Pages Per SheetTwo, four or sixteen up — a handout, or a contact sheet.
- Reorder PDF PagesMove pages without losing the ones you did not mention.
- Remove PDF MetadataStrip the author, software and dates a PDF carries.
- Add Page Numbers to PDFNumbers stamped into the file, not into a viewer.
- Merge PDFJoin several PDFs into one document, in the order you choose.
- Split PDFPull a page or a range out of a PDF into a new document.
- Delete PDF PagesDrop the pages you do not want and keep everything else.
- JSON to TypeScriptTurn a sample payload into interfaces, with optional keys detected.
- PX to REM ConverterConvert pixel values to rem, or back, against any root size.
- XML FormatterIndent it, or strip it back down.
- JSON to CSV ConverterFor getting an API response into a spreadsheet.
- Colour Shades GeneratorTints and shades, blended in OKLab so the steps look even.
- SQL FormatterA readable shape for a query you inherited.
- CSS MinifierComments, whitespace and the last semicolon.
- HTML MinifierStrip comments and collapse whitespace, safely.
- Binary to Text ConverterBoth directions, UTF-8 aware.
- Luhn Checksum ValidatorThe check digit behind card and IMEI numbers.
- Markdown to HTML ConverterHeadings, lists, links, code and quotes — escaped properly.
- Time Zone ConverterOne instant, shown in every zone you care about.
- Readability CheckerFlesch, Flesch-Kincaid and Gunning Fog, plus the sentences to fix.
- Password Strength CheckerEntropy in bits, and the patterns that undo it.
- Morse Code TranslatorBoth directions, with the timing rules explained.
- Email and URL ExtractorPull structured values out of unstructured text.
- Line Break RemoverFor text pasted out of a PDF or an email.
- Find and ReplaceAcross a whole document, with a count of what changed.
- Random Number GeneratorCryptographically random, and genuinely unbiased.
- Keyword Density CheckerSingle words and phrases, ranked by how often they appear.
- GPA CalculatorWeighted by credit hours, one course per line.
- Word CounterWords, characters, sentences and reading time as you type.
- Case ConverterSentence, title, camel, snake and kebab case, done properly.
- Slug GeneratorTurn a title into a clean, safe URL slug.
Calculators
All 98- 50/30/20 Budget CalculatorThe three targets, and how far your actual spending sits from them.
- Pay Rise CalculatorWhat a raise is worth once inflation has taken its share.
- APR to APY CalculatorThe same rate compounded, and what the gap is actually worth.
- Date Add & Subtract CalculatorWhat date falls a given time from another, and which weekday.
- Rent vs Buy CalculatorThe year buying overtakes renting, once selling costs are counted.
- Mean, Median and Mode CalculatorAll three averages at once, and which one your data calls for.
- TDEE CalculatorWhat you burn in a day, and the targets that follow from it.
- One Rep Max CalculatorFour formulas side by side, and the working weights they imply.
- Credit Card Payoff CalculatorHow long a fixed payment takes, against what the minimum costs you.
- Car Loan CalculatorThe payment, the tax, and when you stop owing more than it is worth.
- MPH to Knots ConverterSubtract about an eighth for a mental estimate.
- Knots to MPH ConverterWith the Beaufort force, which is defined in knots.
Everything, on your machine
173 tools. Nothing uploaded, not once.
Every tool runs entirely in your browser. Your files are never uploaded to a server. Open your network tab and watch it stay empty while a file converts — or read why that matters.