Convert any file, right in your browser

Yes. Every converter and tool here works without a login or payment. No watermark, no daily limit, no "please subscribe to download." Premium ($4/month) adds opt-in 7-day cloud restore and raises the per-file limit from 100 MB to 5 GB — you don't need it for normal use.

No. The conversion runs in your browser using a WebAssembly engine that's downloaded once and cached. Open your browser's Network tab while you convert — you'll see no outbound file traffic. The only network calls are page assets and (if you opt in) anonymous error reporting.

100 MB per file on the free tier, 5 GB on Premium. The real limit is your device's available memory — a phone with 4 GB of RAM will choke on a 2 GB video, regardless of plan. Desktop with 16 GB+ RAM handles almost anything.

Over 1,000 input/output combinations across images (JPG, PNG, WebP, AVIF, HEIC, TIFF, BMP, GIF, SVG, ICO), audio (MP3, WAV, FLAC, OGG, M4A, AAC), video (MP4, WebM, MOV, AVI, MKV, GIF), documents (PDF, DOCX, DOC, MD, HTML, TXT, EPUB, MOBI), spreadsheets (CSV, XLSX, JSON, XML, YAML), and archives (ZIP, TAR, 7Z, RAR, GZ). Drop a file in — if it's not supported, we'll say so up front.

The conversion engine — a WebAssembly build of ffmpeg, libvips, pdf-lib, and a few others — downloads to your browser the first time you visit (~30 MB, cached after). When you drop a file, JavaScript hands the bytes to the WASM module, which runs the same C/C++ code a desktop app would, but inside the browser sandbox. The output bytes come back, and the browser saves them as a download.

Yes. Drop the PDF in, pick DOCX as the target. Text and basic formatting carry over. Complex layouts (multi-column academic papers, image-heavy brochures) are best-effort — that's true of every PDF-to-Word converter, including the paid ones, because the PDF format wasn't designed to round-trip back to Word.

Free tier: 50 files per batch. Premium: 500. The total memory cost matters more than the file count — 50 small images convert faster than 5 huge videos. The queue runs them in parallel up to your CPU's core count.

If you opted into cloud restore, your converted file is encrypted client-side and stored in Cloudflare R2 for exactly 7 days. After that, it's deleted automatically — we don't keep a backup. The encryption key stays in your browser; if you lose your account, the file is unrecoverable. Don't opt in if that's not what you want.

After the first visit, yes. The WASM engine is cached by the service worker, so once you've loaded the page on a device, conversions work even with no internet. You can disconnect Wi-Fi mid-conversion and finish the job.

Two reasons. One: no upload. A 200 MB video uploads in roughly 30 seconds on a 50 Mbps connection. ZipConvert skips that step. Two: no shared queue. Cloud services run your conversion on a shared server alongside other users; here, your own CPU is dedicated to your job. The trade-off is that very heavy jobs (4K transcoding for an hour-long video) will be slower on a phone than on a beefy cloud server. For anything under ~500 MB, local wins.

Yes. AirDrop a HEIC, drop it into ZipConvert, pick JPG or PNG. Most browsers can't display HEIC natively but the WASM decoder handles it fine.

No. The free tier produces clean output, identical to what you'd get from a paid tool. We make money from Premium upgrades, not from degrading the free experience.