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Device Check
Test your camera, microphone, display, keyboard, mouse and more — directly in your browser.
Open Device Check →
Simple tools. Less friction.
Useful tools for everyday life.
Choose the tool for your task below: check a device, prepare a file, calculate a value, or work with text and audio. You can open each tool directly; the guides help when a format, setting or result needs explanation.
Made for everyoneClear, global experiences
Privacy mindedClear data handling
Simple & fastFocused on one job well
Start with the file problem
Check format, file size and dimensions separately. These guides show how to inspect the saved result before trying an upload.
Meet file-upload requirements
Separate format, bytes and pixels, then inspect the saved copy.
Compress to Target KB →See the steps →
Understand a white JPG background
Decide whether transparency is needed before choosing the format.
See the steps →Keep merged PDFs in the right order
Compare card order with the boundaries in the downloaded PDF.
Open PDF Merge →See the steps →
Our services
Simple tools for real needs.
Choose by the result you need. The cards explain when each service helps and what to check before relying on the output.
Web tools
Device Check
If a microphone is silent or a key seems stuck, start with the matching device test. The result describes what the browser can observe; it does not certify that the hardware is fault-free.
Open service →File Privacy
Before sharing a photo, inspect the supported EXIF fields and any detected GPS data. An empty result is not proof that every kind of metadata is absent.
Open service →PDF Tools
Combine separate PDFs into one document, or use the page tools when only selected pages are needed. Check the downloaded page count and file boundaries before sharing.
Open service →Image Tools
For an upload with both a file-size limit and minimum dimensions, check bytes and pixels separately. Choose compression for size, resizing for dimensions, and review transparency before converting PNG to JPG.
Open service →Calculators
Work out a percentage change, compare a discount, or check a date interval. Choose the matching calculator and verify the input units and rounding before using the result.
Open service →Developer Tools
Make JSON readable, inspect invalid syntax, or encode and decode text formats. JSON syntax validation does not check whether the fields satisfy your application’s schema.
Open service →Text Tools
Count a form response, clean spacing, or compare two drafts. Choose the matching text tool and inspect the result before replacing your original text.
Open service →Audio Tools
Remove an unwanted lead-in from a voice note or adjust a quiet clip. Keep the original, then play the exported file; supported inputs depend on the browser’s decoder.
Open service →Apps
Hugfolio
Track feeding, sleep, diapers and share baby care records with family.
Open service →One Page
Read short thoughts one page at a time, then save and share favorites.
Open service →8 web tools · 2 appsAnd growing carefully
GlobalDesigned for broad access
User firstFocused on real needs
Privacy mindedTrust should stay understandable
FrAIFlow GuidesEnglish original
Open English original → Guides English original Guides Guides →
Guides for everyday tool problems
Guide languages vary by article. Each link identifies a translated guide or its English original.
Microphone Not Working in Your Browser?
Test mic and playback →Open English original →
Build a tiny JSON error report without sharing the production payload
Read guide →Check a photo for supported EXIF data
Open English original →Verify a trimmed voice-note export before replacing the original
Read guide →Our mission
Small tools.
A simpler life.
FrAIFlow believes useful tools can make life a little easier. We build lightweight, focused services that solve everyday problems — so you can spend more time on what matters.
Learn more about FrAIFlow →