Frequently asked questions
Everything you need to know about Proteus Convert.
No. Every conversion happens entirely inside your browser using WebAssembly and the File API. Your file is never uploaded to our servers — we have no server-side processing at all. The converted result is downloaded directly to your device.
You can run conversions without an account. An account is only required to download the result. Sign-up is free and takes under a minute — no credit card needed. You receive 20 free credits on sign-up.
Every conversion costs exactly 1 credit, regardless of file size or format. Free accounts get 20 credits on sign-up and can top up with credit packs that never expire. Pro ($6.99/mo) includes 600 credits per month; Business ($19.99/mo) gives unlimited conversions.
Documents: PDF, CSV, DOCX, JSON, XML, YAML, XLSX. Images: JPG/JPEG, PNG, WebP, HEIC/HEIF. Video: MP4, MOV, AVI, MKV. Audio: MP3, WAV, FLAC. Drop any supported file onto a converter or use the Browse button to select it.
No artificial size cap — all plans support unlimited file sizes. PDF → CSV handles documents up to 2,000 pages. Video and audio files work best under 500 MB for reasonable in-browser performance.
We store only your email address, credit balance, and anonymous conversion counts for billing purposes. We never see, store, or transmit your files — conversion is entirely local. We do not sell your data or share it with third parties.
Yes. You can upgrade, downgrade, or cancel at any time from your account settings. Credit packs purchased separately never expire and remain in your account regardless of plan changes.