MiniMax Converter — Free Universal File Converter: Convert anything.
MiniMax Converter is a free, offline desktop app for Linux, Windows, and macOS that converts files between 200+ formats — images, documents, PDFs, audio, video, archives, ebooks, 3D meshes, fonts, and more. Built-in AI tools include speech-to-text transcription, background removal, and 2× / 4× image upscaling. Files never leave your computer; no uploads, no telemetry, no account required.
Images. Documents. PDFs. Audio. Video. Archives.
One tool. Every format. Zero compromises.
- What: Universal offline file converter for Linux, Windows, and macOS.
- Price: Free for non-commercial use on Linux. €20 one-time lifetime license for Windows and macOS. No subscription.
- Formats: 200+ including PDF, DOCX, MD, IPYNB, EPUB, MOBI, AZW3, PNG, JPG, HEIC, RAW, MP3, FLAC, MP4, MKV, ZIP, 7Z, STL, TTF, ICS, GPX.
- Privacy: 100% offline. No uploads, no telemetry, no account required.
- Features: Drag-and-drop batch conversion, combine multiple files into a single PDF/PPTX, PDF watermark add and remove, OCR for scanned PDFs, email (.eml/.msg/.pst) to PDF/DOCX/ODT with attachments embedded, audio restoration, URL download from 1800+ sites, 70+ built-in tools plus ~70 more per-format tools on the drop screens.
- Languages: 16 (English, German, French, Spanish, Italian, Portuguese, Russian, Ukrainian, Polish, Dutch, Hindi, Japanese, Turkish, Croatian, Serbian, Slovenian).
- Download: minimax-converter.com/#download
- Learn more: User guide · Release notes · System requirements
Why MiniMax?
Online converters upload your files to a server — yours never leave your computer.
This software is provided as-is, without warranty of any kind. If you find bugs, please report them — we'll try to fix them asap :)
200+ Formats
Images, documents, PDFs, spreadsheets, presentations, audio, video, archives, QR codes, and more.
Batch Processing
Drop an entire folder. Convert hundreds of files at once. No limits, no watermarks.
16 Languages
English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, and 8 more.
PDF Security
Encrypt, decrypt, password-protect. Merge, split, rotate, extract. Full PDF toolkit.
OCR Built-in
Extract text from scanned documents and images. Powered by Tesseract.
Drag & Drop
No menus to dig through. Drag files in, pick a format, done. That simple.
Combine & Arrange
Drop a mix of documents, images, and PDFs. Merge them into one PDF or slideshow. Reorder or delete pages before saving.
Subtitles & Lyrics
Drop a video → get a sidecar .srt subtitle file. Drop an audio file → get the lyrics as a clean text file with verse breaks where the singer pauses. Powered by Whisper AI, runs offline, works in any language.
Remove Background
Drop an image, click Remove BG, get a transparent PNG. Powered by the U2Net AI model running locally — no uploads, no subscriptions, no daily limits. Great for product photos, social media graphics, and layered design.
AI Upscaling
Drop an image, pick 2×, 3×, or 4×, tick “Use AI”. Two presets — one tuned for photos, one for anime and illustrations. Uses your GPU when available (Vulkan on Windows / Linux / macOS); falls back to CPU when not. All offline, no cloud round-trip.
Add Cover Art
Drop one or more audio files, click Add Cover, drop the image. Embeds into MP3, M4A, and FLAC in place. JPG and PNG go in directly; HEIC, WEBP, BMP, TIFF and the rest auto-convert to JPEG first. Works on whole batches at once.
Download from URLs
Drop or paste a media URL from your favourite sites. MiniMax pulls the video or audio and drops you straight into the regular conversion screen. Pick a format, trim, or batch the same way as a local file.
What formats does MiniMax convert?
Convert PDFs to Word for editing, or to JPG for sharing and archival. Convert audio to MP3 for portable playback or FLAC for lossless storage. Convert ebooks between Kindle and EPUB to read on any device. Convert video to MP4 for universal playback or to subtitles for accessibility. Convert spreadsheets to CSV for data work. Each conversion runs offline so private files stay private.
IMG Images
DOC Documents
DATA Spreadsheets
PRES Presentations
AUD Audio
VID Video
ZIP Archives
MAIL Email Extract
What tools come built in?
93 tools across 9 menus. Every one clickable to its own deep-dive page.
Analyze & Inspect 11
Audio Tools 19
Certificates 12
Convert & Format 14
Create & Generate 9
Files & Folders 4
Network 12
Security & Cryptography 9
How do I use MiniMax Converter?
The easiest way to convert files: drag, drop, done. Here are the most common workflows users ask about.
How do I convert a PDF to Word (DOCX)?
Drag your PDF into the app window. Pick DOCX from the format list. Choose Visual mode if you want the original layout preserved as floating text frames, or Clean mode if you want flowing editable paragraphs. The whole conversion runs offline — your file never touches an external server.
How do I generate subtitles for a video?
Drop the video file. Click the Transcribe button. Pick "Add timestamps" — you get a sidecar .srt subtitle file next to the source. Powered by Whisper AI running on your computer; the first run downloads a 142 MB base model into a local cache that all future runs reuse. Works for 99 languages with auto-detection.
How do I batch convert lots of files at once?
Drag a whole folder or any number of files into the window in a single drop. Pick the target format. Watch real-time per-file progress. There is no count limit, no watermark, and no online queue — everything runs locally on your CPU. Mixed drops of documents, images, and PDFs can also be combined into a single PDF or PowerPoint.
How do I remove a background from an image?
Drop the image. Click the "Remove BG" button on the conversion screen. The U2Net AI model does the work locally — output is a transparent PNG named <source>_nobg.png, ready for product photography, social media graphics, or layered design files. The model auto-downloads on first use and is cached for all later images.
How do I generate lyrics from a song or audio recording?
Drop the audio file. Click Transcribe. Pick "Lyrics form" — you get a clean .txt with one line per segment and a blank line at every silence longer than 2 seconds, so verse breaks read naturally. Powered by Whisper AI running locally on your computer; the first run downloads a 142 MB base model that all later runs reuse. Supports 99 languages with auto-detection.
Frequently asked questions
Is MiniMax Converter free?
Free for non-commercial use on Linux. Windows and macOS require a one-time €20 lifetime license — no subscription, no recurring fees, no upgrade charges.
Does MiniMax Converter upload my files?
No. Everything runs 100% offline on your computer. No files are uploaded to any server, no telemetry is collected, and no account is required.
What file formats does MiniMax Converter support?
Over 200 formats across images (PNG, JPG, HEIC, RAW), documents (PDF, DOCX, EPUB, MOBI), audio (MP3, FLAC, M4A), video (MP4, MKV, MOV), archives (ZIP, 7Z, TAR), 3D meshes (STL, OBJ, GLB), fonts (TTF, WOFF), GPS data (GPX, KML), DICOM medical imaging, and many more.
Can I convert PDF to Word (DOCX)?
Yes. Drop the PDF, choose DOCX. The app uses LibreOffice for layout-preserving conversion, with a Clean mode that produces editable flowing paragraphs. OCR is built-in for scanned PDFs — drop a scan, get searchable Word text.
Can I batch-convert multiple files at once?
Yes. Drag and drop a folder or any number of files at once. Batch conversion runs with real per-file progress, no file count limits, no watermarks. You can also drop a mix of documents, images, and PDFs and combine them into a single PDF or PowerPoint.
How do I generate subtitles for a video or lyrics from an audio file?
Drop a video, click Transcribe, choose "Add timestamps" — you get a sidecar .srt subtitle file. Drop an audio file, click Transcribe, choose "Lyrics form" — you get a clean .txt with one line per segment and a blank line at every silence longer than 2 seconds (verse breaks). Powered by Whisper AI, runs offline, supports 99 languages.
Where do I download MiniMax?
Free on Linux — our gift to the open-source community. One-time license for macOS & Windows.
Linux
Full-featured. No limits. No watermarks. Free for non-commercial use.
- All conversion formats
- Batch processing
- 16 languages
- Auto-updates via apt
Windows
Native Windows build. Extract and run.
- All conversion formats
- Batch processing
- 16 languages
- Lifetime license
macOS
Native macOS app. Apple Silicon & Intel.
- All conversion formats
- Batch processing
- 16 languages
- Lifetime license
How much does MiniMax cost?
No subscriptions. No recurring fees. No upsells. Pay once, use forever.
- Lifetime license — no expiration, no renewal
- All future updates included
- Windows & macOS (Linux is free)
- All 200+ format conversions
- All 64 built-in tools
- Batch processing & drag-and-drop
- 16 language support
- Priority email support
Your privacy, guaranteed
MiniMax works 100% offline. No files are uploaded, no data is collected, no telemetry, no tracking. Your files never leave your computer. We literally can't see what you convert.
Per-user licensing
Each license is for one user. Use it on all your personal machines — desktop, laptop, wherever you work. Need licenses for a team? Get in touch.
Free updates, forever
Every new format, feature, and improvement is included. No upgrade fees. No paid tiers. The version you buy today keeps getting better at no extra cost.