Drop a file,
it opens right away
The format is detected automatically. Your file is never uploaded; it is processed only inside this browser.
Drop your file herepdf · docx · pptx · xlsx · csv · json · md · heic · zip
No upload · No sign-in · No install
Supported formats
Pick a format to go to its viewer.
- PDFPDF ViewerNavigate · search · zoom
- DOCXWord ViewerRead documents with formatting
- PPTXPowerPoint ViewerSee slides with their original layout
- XLSXExcel ViewerRead and search sheets as tables
- CSVCSV ViewerAuto-detect encoding · no garbled text
- JSONJSON ViewerCollapsible tree · search · error locations
- MDMarkdown ViewerRendered view and source
- HEICHEIC Image ViewerOpen iPhone photosComing soon
- ZIPZIP ViewerBrowse and preview without extracting
How it works
- 01Drop a fileDrag and drop it, or use the choose-file button.
- 02The format is detectedWe read the extension and take you to the right viewer.
- 03It opens in your browserNothing goes through a server, and the file is not stored.
Your files never leave your device
Everything is processed inside your browser. You can confirm that no file is sent by watching the Network tab in developer tools.
- No upload
- No install or sign-up
- Free
FAQ
Is my file really not sent to a server?
Correct. Files are processed in browser memory only. You can verify this in the Network tab.
Can I use it on my phone?
Yes, but very large files may not open depending on your device memory.