12 free tools · nothing to install · nothing uploaded
Small, sharp tools for things you make.
Chart a cross stitch, lay out plywood cuts, price a 3D print, sync subtitles or trim a ringtone. Every tool runs on your own device, so the files you open never leave it.
- CraftsCross stitch pattern makerPhoto to printable chart with DMC floss list25 pagesOpen →
- CraftsWord search makerPrintable puzzles with an answer key64 pagesOpen →
- MakersCut list optimizerPlywood and lumber layouts with less waste44 pagesOpen →
- Makers3D print cost calculatorDrop an STL, get grams, hours and cost27 pagesOpen →
- MakersResistor color code calculatorBands to ohms, SMD codes and E-series79 pagesOpen →
- Audio & videoSubtitle shifter & converterShift, resync and convert SRT, VTT and ASS41 pagesOpen →
- Audio & videoAudio trimmer & ringtone makerCut audio and make iPhone or Android ringtones28 pagesOpen →
- Audio & videoOnline metronomeSample-accurate clicks, tap tempo, speed trainer62 pagesOpen →
- PhotoImage dithering toolRetro 1-bit, Game Boy and PICO-8 looks29 pagesOpen →
- PhotoDepth of field & exposure calculatorsDepth of field, exposure, ND and star trails39 pagesOpen →
- Home & hobbyAquarium calculatorsGallons, weight, heater and filter sizing34 pagesOpen →
- Home & hobbyBaker's percentage calculatorBaker's percentages, hydration and dough temp22 pagesOpen →
How Feeed works
Built to be trusted with your files.
- Your files stay with youPhotos, audio, 3D models and subtitles are processed by your browser. There is no upload step, no account and nothing for us to store.
- Real reference dataDMC floss numbers, E-series resistor values, standard sheet and tank sizes — each tool works from the references professionals use, and says where values are approximate.
- Formulas on the pageCalculators show how they get their numbers and are checked by automated tests, so you can trust the result before you cut, print or solder.
From the guides · 72 articles
Learn the craft behind the tool.
- Cross stitch pattern makerAida cloth count guide: 11, 14, 16 or 18?
- Word search makerHow to make a word search puzzle
- Cut list optimizerBoard Feet: How Lumber Volume Is Measured and Priced
- 3D print cost calculatorHow much electricity does a 3D printer use?
- Resistor color code calculatorReading Resistor Color Bands Without Guesswork
- Subtitle shifter & converterHow to Fix Garbled Characters in Subtitles
- Audio trimmer & ringtone makerMP3 vs M4A vs WAV vs M4R: which audio format?
- Online metronomeHow to Build Speed With a Metronome
- Image dithering toolHow to convert images for e-ink displays
FAQ
Questions, answered.
Are Feeed tools really free?
Yes. Every tool is free to use with no sign-up, no watermarks and no usage limits. The site is supported by advertising.
Are my files uploaded?
No. Photos, audio, subtitles, 3D models and other files you open are processed by your browser on your own device. They are never uploaded to our servers.
Do I need to install anything?
No. All tools run in any modern browser on desktop, tablet or phone. Some tools also work offline once the page has loaded.
Can I use the results commercially?
Results you create from your own files are yours to use for personal or commercial projects. See the terms of use for details.
How accurate are the calculators?
Each calculator shows its formula and assumptions, and is checked by automated tests against published reference values. They are designed for planning and learning; always check critical measurements against your own materials, equipment and manufacturer data.