All File Extensions — Complete Reference

Browse all 258 file extension reference pages. Each page explains what the format is, which applications support it, MIME types, and related formats. Extensions are grouped by type — documents, images, audio, video, code, web, data, and more.

Documents(30)

.pdf .doc .docx .xls .xlsx .ppt .pptx .odt .ods .odp .rtf .txt .tex .pages .numbers .key .epub .mobi .djvu .ps .xps .wpd .wps .abw .md .rst .org .csv .tsv .log

Images(35)

.jpg .jpeg .png .gif .bmp .svg .webp .tiff .tif .ico .psd .ai .eps .raw .cr2 .nef .dng .heic .heif .avif .jfif .xcf .indd .cdr .wmf .emf .pcx .tga .exr .hdr .pgm .ppm .pbm .pnm .apng

Audio(19)

.mp3 .wav .flac .aac .ogg .wma .m4a .opus .aiff .ape .mid .midi .amr .ac3 .pcm .mka .alac .dts .au

Video(21)

.mp4 .avi .mkv .mov .wmv .flv .webm .m4v .mpg .mpeg .3gp .ogv .vob .ts .mxf .m2ts .divx .3g2 .rm .swf .mts

Archives & Packages(15)

.zip .rar .7z .tar .gz .bz2 .xz .zst .iso .dmg .deb .rpm .lzma .cab .pkg

Programming Languages(43)

.js .py .java .c .cpp .go .rs .swift .rb .php .sh .sql .jsx .tsx .cs .kt .r .lua .dart .zig .wasm .pl .scala .hs .ex .clj .jl .coffee .bat .ps1 .m .f90 .asm .nim .cr .v .groovy .elm .erl .bash .zsh .fish .cmd

Web & Markup(23)

.html .htm .css .scss .vue .svelte .mdx .graphql .sass .less .astro .ejs .pug .hbs .liquid .twig .erb .njk .styl .blade .haml .slim .mustache

Fonts(6)

.ttf .otf .woff .woff2 .eot .sfd

3D & CAD(14)

.obj .stl .gltf .glb .blend .fbx .dae .dwg .dxf .step .3ds .iges .skp .dds

Executables & Binaries(11)

.exe .dll .apk .so .dylib .bin .msi .snap .flatpak .appimage .elf

Database(4)

.mdb .accdb .dbf .dump

Dependency Files(5)

.requirements-txt .cargo-toml .gemfile .go-mod .package-json

Misc(3)

.bak .service .desktop

Related Discovery Pages

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About This Reference

This directory covers 260 file extensions spanning documents, images, audio, video, code, web technologies, data formats, fonts, 3D models, and system files. Click any extension to see what it is, how to open it, its MIME type, and which alternatives exist. Perfect for identifying unfamiliar file types or configuring web server content types.