Pick a viewer
Documents & Books
Office files, PDFs, ebooks, comics.
28 formats- PDF.pdf
Portable Document Format — fixed-layout documents.
Open - DOCX.docx
Microsoft Word OOXML document.
Open - XLSX.xlsx
Microsoft Excel OOXML spreadsheet.
Open - PPTX.pptx
PowerPoint OOXML presentation.
Open - RTF.rtf
Rich Text Format document.
Open - ODT.odt
OpenDocument Text (LibreOffice Writer).
Open - ODS.ods
OpenDocument Spreadsheet (LibreOffice Calc).
Open - ODP.odp
OpenDocument Presentation (LibreOffice Impress).
Open
Data & Config
Structured data, configs, databases.
16 formats- JSON.json
JavaScript Object Notation — structured data.
Open - CSV.csv
Comma-Separated Values tabular data.
Open - TSV.tsv
Tab-Separated Values tabular data.
Open - XML.xml
Extensible Markup Language.
Open - YAML.yaml
Human-readable config/data format.
Open - TOML.toml
Tom's Obvious Minimal Language config.
Open - INI.ini
Classic key=value config files.
Open - SQLite.db
.db / .sqlite database file.
Open
Images
Raster, vector, and exotic image formats.
28 formats- SVG.svg
Scalable Vector Graphics.
Open - PNG.png
Lossless raster image.
Open - JPEG.jpg
Lossy photo image.
Open - GIF.gif
Animated/static raster image.
Open - WebP.webp
Google's modern lossy/lossless image.
Open - AVIF.avif
AV1-based modern image format.
Open - BMP.bmp
Windows uncompressed bitmap.
Open - ICO.ico
Windows multi-resolution icon.
Open
Audio
Waveforms, metadata, MIDI.
8 formats- Audio (WAV/FLAC/OGG).wav
Audio with waveform/spectrogram view.
Open - MP3 (tags).mp3
ID3 metadata + native audio playback.
Open - MIDI.mid
Musical Instrument Digital Interface.
Open - CUE.cue
Audio cuesheet (track marks for a single file).
Open - MOD / IT / XM / S3M.mod
Tracker modules — header and sample listing.
Open - AIFF.aif
Audio Interchange File Format.
Open - MusicXML.musicxml
Sheet music interchange.
Open - Guitar Pro.gp
Guitar tablature with playback.
Open
Video
Native browser playback.
6 formats3D Models
Meshes, scenes, scans.
19 formats- STL.stl
Stereolithography 3D mesh (3D printing).
Open - OBJ.obj
Wavefront 3D model (mesh + materials).
Open - FBX.fbx
Autodesk Filmbox 3D (animation/rigs).
Open - glTF.gltf
GL Transmission Format — web 3D standard.
Open - GLB.glb
Binary glTF (single file).
Open - Collada (DAE).dae
Collada XML-based 3D interchange.
Open - PLY.ply
Polygon File Format (Stanford scans).
Open - 3DS.3ds
Legacy 3D Studio Max format.
Open
CAD & PCB
Engineering drawings and BIM.
13 formats- STEP / STP.step
ISO 10303 CAD interchange (parametric solids).
Open - IGES / IGS.iges
Initial Graphics Exchange Spec (CAD).
Open - BREP.brep
Boundary Representation CAD geometry.
Open - DWG.dwg
AutoCAD native drawing.
Open - DXF.dxf
AutoCAD Drawing Exchange Format.
Open - Gerber.gbr
PCB fabrication files (RS-274X) with stackup compositing.
Open - Excellon.drl
PCB drill/route files with tool table and hit map.
Open - ODB++.tgz
PCB design exchange archive (Valor / Siemens).
Open
Archives
ZIP, TAR, ISO and friends.
8 formats- ZIP.zip
Universal archive format.
Open - TAR.tar
Unix tape archive.
Open - GZ.gz
Gzip compression.
Open - 7-Zip.7z
7-Zip archive (high compression).
Open - RAR.rar
Roshal Archive (proprietary, decode-only).
Open - ISO.iso
Optical disc image (ISO 9660).
Open - APK / IPA.apk
Android / iOS app packages.
Open - JAR / WAR.jar
Java archives (ZIP with manifests).
Open
Code & Markup
Text, Markdown, HTML, logs.
13 formats- Plain Text.txt
Plain text — the universal format.
Open - Log.log
Plain text logs (often huge, needs virtualization).
Open - Markdown.md
Markdown — lightweight markup.
Open - HTML.html
Web pages — render in sandboxed iframe.
Open - IPYNB (Jupyter).ipynb
Jupyter Notebook (JSON with cells).
Open - R Markdown.rmd
R Markdown with code chunks.
Open - LaTeX.tex
LaTeX source with math rendering.
Open - BibTeX.bib
BibTeX bibliography database.
Open
Geospatial
Maps, vector and raster GIS.
17 formats- KML.kml
Google Earth XML geodata.
Open - KMZ.kmz
Zipped KML bundle.
Open - GeoJSON.geojson
Geographic JSON features.
Open - GPX.gpx
GPS Exchange — tracks, routes, waypoints.
Open - Shapefile (SHP).shp
ESRI Shapefile (geospatial vector).
Open - GeoTIFF.tif
Georeferenced raster imagery.
Open - LAS.las
LIDAR point cloud.
Open - LAZ.laz
Compressed LIDAR point cloud.
Open
Email & Calendars
Messages, contacts, events.
5 formatsScientific
Medical imaging, arrays, datasets.
21 formats- DICOM.dcm
Medical imaging (CT/MRI/X-ray) DCM files.
Open - NIfTI.nii
Neuroimaging volumetric data (.nii).
Open - NRRD.nrrd
Nearly Raw Raster Data for medical/scientific volumes.
Open - HDF5.h5
Hierarchical scientific data.
Open - NetCDF.nc
Climate/atmospheric scientific arrays.
Open - MAT.mat
MATLAB data file — v5 and v7.3.
Open - NumPy NPY / NPZ.npy
NumPy array dumps.
Open - FITS.fits
Astronomical image and table format.
Open
Fonts
Glyphs, metadata, hinting.
4 formatsSpecialty
Subtitles, captures, raw bytes.
19 formats- SRT.srt
SubRip subtitle file.
Open - WebVTT.vtt
WebVTT — HTML5 native subtitles.
Open - ASS / SSA.ass
Advanced SubStation Alpha styled subtitles.
Open - PLIST.plist
Apple Property List (XML or binary).
Open - Torrent.torrent
BitTorrent metainfo (bencoded).
Open - PCAP / PCAPNG.pcap
Wireshark packet captures.
Open - Hex / Binary.bin
Raw bytes view of any file.
Open - M3U / M3U8.m3u
Audio/video playlist (HLS for M3U8).
Open
Files never leave your device.
PDFs, images, ebooks, spreadsheets, 3D models, scientific data — decoded with JavaScript and WebAssembly inside your tab. We drop you into the right viewer the moment your file lands.
Convert and compress, all in your browser.
Turn images, PDFs, audio, video and archives into the format you need — or shrink them down — without uploading a single byte.
Compress files, all in your browser.
Shrink images, PDFs, audio and video down to a smaller size — without uploading a single byte.
Edit and transform, all in your browser.
Crop and resize images, edit PDF pages, trim video and audio — and more — without uploading a single byte.
Common questions
Short answers to what people ask first.
- Is anything uploaded to a server?
- No. Every viewer runs on your device. Files are decoded by JavaScript and WebAssembly inside your browser; nothing is sent over the network.
- Does it work offline?
- Once the page is loaded, viewing files works without a network connection. Many viewers also lazy-load WASM decoders on first use.
- Why so many formats?
- We build one shared chrome and plug in a renderer per format. New viewers can be added as self-contained modules without touching the rest of the site.
- Can I use this on mobile?
- Yes. Every viewer is mobile-first with proper touch targets and viewport handling. Phones, tablets, and desktops all work.
- Is it free?
- Yes. The full site is free. No accounts, no quotas, no ads, no paywall.