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KnifeLemon / Filee

Free, open-source file converter. Convert 263 formats offline by drag & drop — images, PDF, Word, Excel, PowerPoint, HWP/HWPX, video, audio, e-books and archives. No upload, no Office needed.

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26.6k 1.5k 5 更新于 2026-11-13 20:59

A free, open-source file converter you use by dragging.
Hold a key (Ctrl, Option on macOS), drag files and drop them on a format in the donut that opens at your cursor.

Website · Download · LinkedIn · Install · Command line · Development

English · Español · 日本語 · 한국어 · 简体中文 · 繁體中文 · Polski · हिन्दी · Русский · العربية · فارسی · Português (Brasil) · Português (Portugal) · Français · ไทย · Türkçe · Bahasa Indonesia · Italiano · বাংলা

Right at your cursor
No app window to open. The formats appear where you already are, only the ones that make sense for the files you drag.

270 formats, no other software
Images, PDF, Word, Excel, PowerPoint, HWP, e-books, archives, fonts, CAD, 3D models and geospatial data work without Office, Hancom Office or LibreOffice.

Stays on your computer
Nothing is uploaded. Filee works offline and saves the result next to the original.

See it in action

_{Watch the 27-second video and try the interactive demo on filee.sh}

Install

Download from Releases.

Or with WinGet:

powershell
1
winget install KnifeLemon.Filee

Windows 10/11: run Filee-<version>-win-Setup.exe, or unzip the win-Portable.zip and run Filee.exe.
- Setup is Filee's own installer, in Filee's languages, and needs nothing else on the PC.
- It can add the Explorer menu, start at sign-in, the filee command and optional engines.
- Silent installs take Inno Setup's switches (/VERYSILENT /SUPPRESSMSGBOXES).
macOS 13+ (preview): unpack the osx-arm64 or osx-x64 package and run ./install.sh.
- Or open the .dmg and drag Filee to Applications (the filee command comes with install.sh).
- The build isn't notarized yet, so allow the first start in System Settings → Privacy & Security → Open Anyway.
Linux x64/ARM64 (Ubuntu 22.04+): unpack the package and run ./install.sh (no root, needs Python 3).
- Drag gestures need X11. On Wayland, use the drop zone and the file manager's right-click menu.

Portable releases keep their data beside the app; see portable mode.

Filee shows new releases in its menu and updates itself, keeping your settings and engines. After an update, a few slides show what's new.

Windows: Filee doesn't start (no window, no error)? This happens on Windows 10 that hasn't been updated for a long time, on a PC whose processor supports Hardware-enforced Stack Protection (CET). Windows turns that protection on but lacks a part that .NET needs, so Filee and Setup stop right away.

Recommended: install the available Windows updates (the latest cumulative update).
If updating isn't possible: turning the protection off for Filee alone usually works. Run this in PowerShell as administrator:

powershell
12
Set-ProcessMitigation -Name Filee.exe -Disable UserShadowStackSet-ProcessMitigation -Name filee-cli.exe -Disable UserShadowStack

Do the same with Setup's file name (e.g. Filee-<version>-win-Setup.exe), or use the portable ZIP, which needs only these two lines. To undo it, remove the entries in Windows Security → App & browser control → Exploit protection settings → Program settings.

Features

A donut at the cursor: hold a key, drag files and drop them on a format. Only formats that fit the files appear.
Straight from the browser: drag a picture, a link to a file or a download out of Chrome, Edge, Firefox or Safari the same way.
- Filee saves it to your Downloads folder (or keeps only the converted file) and converts it.
- Links are downloaded without your browser's sign-in.
One toolbar per file type, arranged by drag and drop, with presets for:
- quality, size, DPI
- PDF pages and compression
- video and audio
- output folder and file names
Two sides to every donut: press Tab or turn the mouse wheel while it is open to flip it over to less common formats and tools.
Crop before converting: the Crop slice opens pictures one by one. Drag the frame, pick a ratio, and only that part is saved.
Many files at once, in parallel. Routes with several steps (HWP → HWPX → DOCX) are found automatically.
Watch folders convert every file that lands in them.
Recent conversions on Home, each with a thumbnail: open the result, or open it with another app.
A file list on Home: turn on Collect dropped files in a list in General settings, and files dropped on Home (including those dragged from a browser) wait in a list instead of opening the donut. Drag the cards or use Alt+↑ / Alt+↓ to set the order, Delete to remove one, and Choose action to open the donut for the list in that order. The list empties when that conversion completes.
Other ways in: the right-click menu, a keyboard shortcut, the drop zone and the filee command.
Light and dark themes with your own accent colour and donut opacity, in English, Español, 日本語, 한국어, 简体中文, 繁體中文, Polski, हिन्दी, Русский, العربية (right to left), Português (Brasil), Français, नेपाली, ไทย, Türkçe, Português (Portugal), Deutsch, Italiano, Bahasa Indonesia and Tiếng Việt.

Screenshots


_{Arrange the donut by drag and drop, one profile per file type}	_{Home: drop zone and recent conversions}

Formats

From	To
Images: JPG, PNG, WEBP, AVIF, TIFF, BMP, GIF, APNG, ICO, ICNS, JPEG XL, JPEG 2000, PSD/PSB, TGA, PPM, HEIC, QOI, DDS, PCX, MNG, CUR, …; GIMP XCF, camera RAW (CR2, CR3, NEF, ARW, DNG, …), DICOM, OpenEXR, HDR, FITS, JPEG XR (Windows), iPhone Live Photo (LIVP), Paint.NET PDN (↔ PSD with its layers), animated cursor (ANI) read	any of these (HEIC⁵), Paint.NET PDN, PDF, SVG (traced), resized, grayscale; Live/Motion Photos (iPhone, Android) → their video (MP4, MOV⁵), and a video → Live Photo (iPhone) or Motion Photo (Android)⁵, experimental
Vector: SVG, SVGZ, EMF, WMF, AI EPS, PS¹ CDR, VSD, CGM, ODG, FODG²	PDF (vector), PNG and other images, SVG ↔ SVGZ, SVG → DXF/DWG, PDF → EPS/PS¹, SVG → EMF, WMF, ODG²
PDF	DOCX, HWPX, TXT, PNG, JPG, TIFF, CBZ, PPTX (a picture of each page), SVG²; merge (in an order you choose first), split, page ranges, compress (smaller PDFs)
Documents: DOCX, DOCM, DOTX, EML, Outlook MSG; OFD (Chinese e-invoices, official documents) read DOC, ODT, FODT, OTT, RTF, WPS, WPD, Pages, ClarisWorks, MacWrite, T602, …²	PDF, DOCX, HWPX, EPUB, TXT, HTML; MSG → EML ODT, FODT, OTT²
Spreadsheets: XLSX, XLSM, XLS, XLT, ODS, CSV, TSV OTS, FODS, Numbers, ET²	PDF, XLSX, ODS, CSV, TSV, JSON, HWPX, HTML XLT, OTS²
Presentations: PPTX, PPTM, POTX, POTM, PPSX PPT, ODP, OTP, FODP, Keynote²	PDF, PNG, JPG, DOCX, HWPX OTP²
HWP: HWP, HWPX	PDF, PNG, DOCX, HWPX ↔ HWP, TXT, Markdown, HTML
Text: TXT, LOG, script source (PY, PAC, BAT, COMMAND; read, never run), Markdown, HTML; MHTML (saved web pages) read reStructuredText, LaTeX, Org, AsciiDoc, Typst, MediaWiki, DocBook, Jupyter, Textile, man, OPML³	UTF-8 TXT, PDF, DOCX, HWPX, EPUB each other, PPTX slides³
E-books: EPUB, KEPUB, MOBI, AZW3, AZW, AZW4, FB2, CBZ, CBR, CB7, HTMLZ, TXTZ LIT, LRF, CHM, PDB, …⁴	PDF, EPUB, KEPUB (Kobo), DOCX, TXT, HTML, HWPX MOBI, AZW3⁴
Video⁵: MP4, MOV, MKV, WEBM, AVI, WMV, FLV, MPEG, Video CD (DAT), TS, M2TS, 3GP, OGV, VOB, …	MP4 (H.264, HEVC, AV1), WEBM, MOV, MKV, AVI, GIF, APNG, MP3, M4A, 720p, subtitles (SRT, ASS, WebVTT)
Audio⁵: MP3, M4A, AAC, WAV, FLAC, OGG, OPUS, WMA, AIFF, AMR, APE, WavPack, TTA, DSD (DSF, DFF), DTS, AC3, E-AC3, …	MP3, M4A (AAC, ALAC), WAV, FLAC, OGG, OPUS, AAC, WavPack, TTA, W64, AC3, E-AC3
Subtitles: SRT, ASS/SSA, WebVTT, SAMI (SMI), LRC, TTML, MicroDVD, SCC	each other as UTF-8 (Korean CP949 files read correctly)
Archives: ZIP, ANSYS Workbench (WBPZ), 7Z, RAR, TAR, TAR.GZ, TAR.BZ2, TAR.XZ, GZ, ISO, CAB, DMG, ALZ, EGG, …	extract, ZIP, 7Z, TAR, TAR.GZ; any files → one ZIP
CAD: DWG, DXF	PDF, SVG, PNG, DWG ↔ DXF
Fonts: TTF, OTF, WOFF, WOFF2, EOT; FON (Windows bitmap fonts) read	each other; FON → one font per size
Data: JSON, JSON Lines, YAML, TOML, XML vCard, iCalendar	each other, CSV and XLSX (tables); vCard, iCalendar ↔ CSV
3D models: GLB, glTF, STL, OBJ (+ MTL), 3MF, PLY; FBX read	each other, PNG preview
Geospatial vectors: Shapefile, GeoJSON, KML, KMZ, GPX CSV with coordinates; Garmin FIT, OpenStreetMap (.osm) read	each other and CSV / XLSX / JSON; projected data (UTM, Web Mercator, Lambert, Albers) comes out as WGS 84 longitude / latitude

Unmarked formats work out of the box, without Office, Hancom Office or LibreOffice. Marked ones need an optional engine, downloaded only when needed: ¹ Ghostscript, ² LibreOffice, ³ Pandoc, ⁴ calibre, ⁵ FFmpeg (details).

Command line

The filee command uses the same engines and presets as the app (Setup or install.sh adds it).


123
filee convert photo.heic --to jpgfilee convert *.png --to webp --quality 80 -o convertedfilee watch D:\Inbox --to pdf --move-originals

Every command and option: filee.sh/cli or filee help.

Development

Build with the .NET 10 SDK on Windows, macOS or Linux:

bash
12345
git clone https://github.com/KnifeLemon/Filee.gitcd Fileepwsh build/fetch-engines.ps1 -Only rhwp,pandoc   # optional enginesdotnet run --project src/Filee.Appdotnet test

Architecture · Engines · Adding a converter · Adding a language · Contributing

Pull requests are welcome. If Filee saves you some clicks, a ⭐ helps other people find it.

Code signing policy

Filee is developed and published by Myeonggu Kim (KnifeLemon).

Windows releases are signed with a Certum open source code signing certificate issued to Myeonggu Kim ("Open Source Developer MYEONGGU KIM").
- Releases before it, up to 2.0.0, are not signed.
- SmartScreen can still warn about a new release until it has been downloaded enough ("More info" → "Run anyway").
macOS packages are ad-hoc signed and not notarized.
Only files built by this repository's GitHub Actions release workflow are signed, and every release is signed and approved by hand.
- Libraries and programs their makers signed (.NET, SkiaSharp, ImageMagick, the Microsoft C++ runtime …) keep their own signatures; bundled ones that come unsigned (rhwp, 7-Zip and most libraries) are signed with Filee's certificate, as part of Filee.

Privacy policy

Filee converts files on your own computer and never uploads them. It collects no usage data and sends no telemetry. It connects to the internet only:

to ask GitHub (api.github.com) whether a newer release exists, shortly after start and then every few hours. Turn this off in Settings → About ("Check for updates automatically").
to download the conversion engines you choose to install, from the official locations pinned in engines.json, and the text recognition (OCR) languages a preset uses, pinned in ocr-languages.json.
when you click a link, which opens your web browser.

Sponsor

Filee is free and stays free. If you'd like to support it, pick whichever way suits you (Fairy takes Korean cards and easy-pay).

Your name or logo here. Monthly backers are listed here by name, and sponsors get their logo here and on Filee's About page. One-time supporters can ask to be listed too.