The only file converteraccount you’ll ever create.
A one-time purchase you keep forever. Your files never leave your device.
Your files never leave your device. Nothing is ever uploaded.
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Lifetime license
The only file converteryou’ll ever need.
Convert 800+ formats entirely on your Mac. Your files never leave your device.
Lifetime license
$29USD · Lifetime
- Files never leave your Mac
- 800+ formats
- Unlimited file size
- Batch whole folders
- Works completely offline
- Lifetime updates
One payment, yours for life. 14-day money-back guarantee, no questions asked.
FAQ
Frequently Asked Questions
What is TeraConvert?
TeraConvert is a local file converter for images, videos, audio, and documents. The web app converts in your browser tab, the desktop app converts with native engines on your Mac, and neither one uploads your files anywhere.
What's the difference between the browser and the desktop app?
The browser converter handles the most common formats (PNG, JPG, MP4, MP3, PDF, DOCX, and more) right in the tab, one file at a time. The desktop app adds HEIC, RAW, EPUB, AVI, FLV, XLSX, and hundreds of other pairs, plus batch conversion.
What formats does it support?
800+ supported conversions across images (PNG, JPG, HEIC, AVIF, WebP, SVG, TIFF, RAW), video (MP4, MOV, MKV, AVI, WebM, FLV), audio (MP3, WAV, FLAC, AAC, OGG, M4A), documents (PDF, DOCX, MD, HTML, EPUB), spreadsheets (XLSX, CSV, ODS), and presentations (PPTX, PPT).
How does it run locally without uploading my files?
The web app converts directly in the browser tab using WebCodecs, Canvas, and WASM (including FFmpeg, jSquash, and pdf-lib). The desktop app uses Apple's built in tools where available (sips, textutil, qlmanage) and calls out to standard CLI engines (FFmpeg, ImageMagick, Pandoc, Ghostscript, Tesseract, LibreOffice) that you install once through your system package manager (Homebrew on macOS). Files stay on your device in both cases.
Can I use it for NDA, confidential, or other sensitive files?
Yes. Because conversions run on your machine, files never touch our servers or any third party. Many users run it on isolated work laptops for exactly this reason. If you operate under a compliance regime such as HIPAA, you remain responsible for your own organization's policies and infrastructure.
Does it work fully offline?
Yes for conversions. The desktop app activates once with an internet connection to verify your license, and from then on every conversion runs locally with no network calls.
How many devices can I use, and do I get free updates?
The license is tied to your account, so you can use it on every Mac you own. There is no device limit. Every future update is included for the lifetime of the app.
What's the refund policy?
Every purchase comes with a 14-day money-back guarantee, no questions asked. Email contact@teraconvert.com with your order ID within 14 days and you get a full refund.
My format isn't supported. Can I request it?
Yes. Format additions are prioritized by user requests. Reach out through the contact page with your input and desired output format and we'll look at the routing.