The web tool is free and always will be. The desktop app is for the jobs a
browser can't finish: huge files, whole folders, and speech — transcribed, translated and
spoken back, without a single byte leaving your machine.
No size limits. 4K and multi-gigabyte files, without the browser's memory ceiling.
Batch. Drop in a folder and walk away — per-file progress, one run.
Subtitles & transcripts. Speech recognition in 99 languages, running on your
machine with whisper.cpp. No cloud, no per-minute transcription bill.
Translate into 15 languages. A local language model rewrites your subtitles,
keeping every cue on its original timing. Burn them into the video, or export SRT and VTT.
Dub it. Turn the translation into a spoken voice-over using the voices already
installed on your system, ducked over the original audio.
Your watermark, not ours. Drop a logo or a line of text onto video and images —
position, size and opacity, burned in properly.
Images too. Compress to an exact size, resize, and convert between JPEG, PNG,
WebP and AVIF — the same batch queue as video.
Built-in viewer. Play a file before you process it, then flip between the
original and the result to see exactly what the compression cost.
Hardware encoding. Uses your GPU where available, and picks the best encoder
your machine actually supports.
Still private. Nothing is uploaded and there is no account. Compression,
captions and watermarking work with no internet at all; translation downloads its
language model once, then it too runs offline.
Before you buy
What's the difference from the free web version?
The web tool runs in your browser, so it inherits the browser's limits — roughly a
couple of gigabytes, one file at a time, and no speech recognition. The desktop app
bundles a native encoder, a speech model, a translation model and your system's voices,
so it also does subtitles, translation, dubbing and watermarking, which a browser
simply cannot.
Which platforms?
Windows, macOS and Linux. One licence covers your own machines.
Do my files get uploaded?
No — that's the whole point. Both the web tool and the desktop app process everything
locally, and there is no account. Compression, captions and watermarking need no internet
at all. Translation downloads its language model once, the first time you use it; after
that it runs offline too.
Which languages can it translate into?
Speech is recognised in 99 languages and can be translated into 15, including Spanish,
French, German, Portuguese, Japanese, Korean, Chinese, Arabic and Hindi. You get the
translated subtitles as SRT and VTT, a plain transcript, or burned into a copy of the
video.
How does the dubbing work?
It speaks the translated subtitles using the text-to-speech voices already installed on
your computer, fitted to the original timing and mixed over the source audio. That means
it depends on which voices your system has — most machines ship with English only, and
you can add more free from your operating system's language settings. The app shows you
which voices it found before you start.
How do I get my licence key?
It's generated the moment your payment clears and emailed with your receipt. You can
also find it any time in the order link Lemon Squeezy sends you.
Refunds?
The free web tool lets you judge the output quality before paying. If the desktop app
doesn't do what you expected, reply to your receipt within 14 days and we'll refund it.