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One is a free, ad-free file viewer for Android that opens over 500 file formats. Browse all folders, view images with swipe navigation, play video and audio, read PDFs, EPUB books, and comics, inspect code with line numbers, and browse ZIP-based archives. Also includes a binary hex viewer and a generic viewer for unknown files. No ads, no trackers, no account required. Works completely offline.
Open any file instantly. 500+ formats, no ads, 100% free, works offline.
**One — The Universal File Viewer for Android** One is a fast, free, lightweight, and completely ad-free file viewer for Android. Open 500+ file formats — documents, images, videos, audio, PDFs, eBooks, code, archives, and binary files — in one clean app. **No ads. No subscriptions. No trackers. No account. No internet.** Just a private file viewer for files already on your device. ### WHAT ONE CAN DO **BROWSE FILES** Browse folders and files with a clean interface. Folders appear first, followed by files. Tap to open and press back to navigate. **VIEW IMAGES** Open JPG, PNG, WEBP, GIF, BMP, HEIC, SVG, TIFF, ICO, and more. Swipe between images and view details. **PLAY VIDEOS** Play MP4, MKV, WEBM, 3GP, AVI, MOV, FLV, WMV, M4V, and more. **PLAY AUDIO** Play MP3, M4A, WAV, FLAC, AAC, OGG, OPUS, AIFF, ALAC, MID, AMR, and more. Includes a vinyl-style player, animated equalizer, seek bar, and 10-second rewind/forward. **READ PDFs & EBOOKS** Read PDF files with smooth page navigation. Open EPUB and other supported eBook formats locally. **READ COMICS** Open CBZ and CBT comic archives page by page. **VIEW DOCUMENTS** Open TXT, MD, RTF, CSV, TSV, LOG, DOCX, XLSX, PPTX, ODT, ODS, ODP, ODG, and more. Processed locally. **VIEW CODE** Open Java, Kotlin, Python, JavaScript, TypeScript, HTML, CSS, XML, JSON, YAML, SQL, C, C++, C#, PHP, Ruby, Go, Rust, Swift, Dart, Shell, and 110+ more. Includes line numbers. **BROWSE ARCHIVES** Explore ZIP, JAR, WAR, EAR, AAR, APK, XAPK, APKS, APKM, IPA, CBZ, CB7, CBT, EPUB, WHL, EGG, NUPKG, CRX, XPI, VSIX, UNITYPACKAGE, DOCX, XLSX, PPTX, ODT, ODS, and ODP archives. Navigate folders and open files inside. **INSPECT BINARY FILES** View binary files with a hex dump, offsets, printable strings, and format detection. Three views: **HEX, TEXT, and INFO**. **OPEN UNKNOWN FILES** Open any file regardless of extension. View file information, printable strings, and hexadecimal data. Use Open With to share. **OPEN FILES FROM OTHER APPS** Use Android's Open With or Share action to send a file directly to One. One opens it with the appropriate viewer. ### WHY ONE • **100% FREE** — No ads, subscriptions, or in-app purchases • **PRIVATE** — No analytics, telemetry, or data collection • **OFFLINE** — No internet access required • **NO ACCOUNT** — Install and use immediately • **LIGHTWEIGHT** — Low memory usage • **FAST** — Quick opening and smooth navigation • **MODERN** — Clean interface and smooth animations • **LOCAL** — Your files stay on your device ### PERMISSIONS & PRIVACY One requests only storage access needed to browse and open files. Older Android versions may use READ_EXTERNAL_STORAGE; Android 11+ may require MANAGE_EXTERNAL_STORAGE depending on device. One does not request internet, camera, microphone, location, contacts, calendar, SMS, or other unrelated permissions. Because One does not request internet access, it cannot transmit your files or usage data to a server. ### SUPPORTED FILE TYPES **Video:** MP4, MKV, AVI, MOV, 3GP, WEBM, FLV, WMV, M4V, MPG, MPEG, TS, M2TS **Audio:** MP3, M4A, WAV, FLAC, AAC, OGG, WMA, OPUS, AIFF, ALAC, MID, AMR **Images:** JPG, JPEG, PNG, WEBP, GIF, BMP, HEIC, SVG, TIFF, ICO **PDF & eBooks:** PDF, EPUB, MOBI, AZW, AZW3, FB2, FBZ, CBZ, CBT, XPS, DJVU **Documents:** TXT, DOC, DOCX, XLS, XLSX, PPT, PPTX, ODT, ODS, ODP, CSV, RTF, MD **Code:** Java, Kotlin, Python, JavaScript, TypeScript, HTML, CSS, XML, JSON, C, C++, C#, PHP, Ruby, Go, Rust, Swift, Dart, and 100+ more **Archives:** ZIP, JAR, APK, XAPK, IPA, WAR, EAR, AAR, WHL, EGG, NUPKG, CRX, XPI, VSIX **Binary:** EXE, DLL, SO, DEX, ELF, BIN, CLASS, PYC, WASM **Database:** DB, SQLite, SQLite3, MDB, and more **500+ file formats supported.** ### ABOUT AWAN IGD One is developed by **Awan IGD**, a software company based in Haripur, Pakistan, founded on **25 June 2026 by Bilal Rasheed**. **Website:** awan-igd-pk.web.app **Open everything. Free forever.**