Portuguese caption generator, free in your browser

Burn animated word-by-word Portuguese captions into your video, or caption an English video in Portuguese. Your footage never leaves your device. Free to use: no mark on your first two videos, then a small mark, or $49 once for none.

Caption a video in Portuguese, free
  • No subscription
  • Video never uploaded
  • No sign-up
  • Free to use

Live preview in português, rendered on this page by the same engine that burns your video.

What you get in Portuguese

Heard as Portuguese, written as Portuguese

On public Portuguese test clips the model that runs in your browser got about 72 in 100 words right before any correction, and the first words appear on your video within seconds. For the closest transcript Burncaps offers our speech service (Microsoft's MAI-Transcribe, run in the EU), which got about 96 in 100 words right on public Portuguese test recordings (Google FLEURS); only the sound goes to it, never the picture, and nothing is kept. Every word is click-to-edit before you export.

Latin letters with accents, drawn properly

Every one of the twenty caption styles covers Latin letters with accents, including the keyword highlight and the heavy outlined look short-form creators use.

Portuguese captions on an English video

Speak English and choose Portuguese under Captions in: every line is translated and laid over the same moments, so the captions keep their word-by-word rhythm. The reverse works too, Portuguese speech captioned in English.

Who this is for

Brazilian and Portuguese creators, and anyone who wants the same video to reach Portuguese viewers. Search for "gerador de legendas automáticas" and most results upload your video to a server and charge by the month; Burncaps does the work on your own device, so the free videos are not bait: after them you can keep going free with a small burncaps.app mark, or pay $49, once, for none.

Against the usual caption apps

What mattersBurncapsTypical caption app
PortugueseHeard and written as PortugueseOften English-first, Portuguese as an afterthought
PriceFree to use: no mark on your first two videos, then a small mark, or $49 once for none$15 to $25 a month
WatermarkNone on your first two videos; a small burncaps.app mark after, which Pro removesUsually on every free video
Your footageStays on your deviceUploaded to their servers
AccountNoneRequired

Questions, answered plainly

Does it write real Portuguese?

Yes. The speech model listens first, names the language it hears above your script, and writes Portuguese in Latin letters with accents. Every word is click-to-edit before you export.

Can I get Portuguese captions on an English video?

Yes. Choose Portuguese under Captions in and the lines are translated, keeping the word-by-word timing of the original. The translation sends the transcript text, never the video, and you can switch it off with Keep everything on this device.

Are the Portuguese captions drawn in a proper font?

Yes. All twenty caption styles cover Latin letters with accents, and the fonts are part of the page, not fetched from a third party.

Is there a watermark on the free videos?

Not on your first two: they are free with every feature and no mark of ours. After that you can keep going free, and each video carries a small burncaps.app mark in the top corner; Pro, $49 once, gives unlimited videos with no mark, never a subscription.

Does my video get uploaded?

No. The video never leaves your device. On a computer the speech model runs in your browser. On a phone, for a language other than English, or when you ask for a closer transcript, you can choose our speech service instead: then the sound goes to it in short pieces, never the picture, and nothing is kept. The transcript text leaves only for the 30 or 60 second cut, the name check or a translation, and a tick box keeps everything on your device.

Burncaps facts, checked 28 September 2026

What it is: a browser tool that burns animated word-by-word captions into a talking video, or cuts it to its best 30 or 60 seconds.

Price: free with every feature, for as many videos as you like. The first two carry no mark; after that each carries a small burncaps.app credit, which Pro removes for $49 once. Pro is not a subscription.

Privacy: the video never leaves your browser. The sound leaves only if you choose our speech service.

Files: MP4 or MOV up to ten minutes in; an MP4 with the captions burned in out. SRT, VTT, ASS and text files are free without limit.

Languages and styles: captions in the language spoken, twelve Indian languages heard on your device, translation into 37 languages, 20 caption styles.

Made by: Jordan Labs Ltd, UK company no. 17358646.

Against other tools: twelve caption tools compared, from the vendors' own pages.