Free Online File Viewer - View Any File in Your Browser
Universal file viewer for images, videos, audio, code, JSON, CSV, PDF, fonts, and binary files. Magic bytes detection, tabbed interface, zoom/pan for images, waveform for audio. No uploads -- 100% private.
Runs in your browser. No data leaves your device.
Frequently Asked Questions
How does File Viewer work?
File Viewer reads the first bytes of your file to identify its format using magic byte signatures (file headers), then selects the appropriate viewer. Images get zoom/pan controls, videos get a player with speed controls, audio files get waveform visualization, structured data (JSON, CSV) gets tree/table views, and PDFs are rendered page-by-page. All processing happens in your browser -- files are never uploaded.
What file formats are supported?
Virtually any file: images (PNG, JPG, GIF, WebP, SVG, BMP, AVIF, ICO), video (MP4, WebM, MOV, MKV, AVI), audio (MP3, WAV, OGG, FLAC, AAC, M4A), structured data (JSON, CSV, TSV, XML, YAML, TOML), code/text (JS, Python, HTML, CSS, and 50+ languages), PDF documents, fonts (TTF, OTF, WOFF/WOFF2), and binary files (hex dump view).
Can I view multiple files at once?
Yes. Drop multiple files and each opens in its own tab. Click tabs to switch between files. You can add more files at any time with the + button or by dropping them in.
Is my data private?
Yes. All viewing happens entirely in your browser using ObjectURLs. Your files are never uploaded to any server. When you close a tab, the file reference is released from memory.