Rainbow Captions Blog
Download

One video.170 caption tracks.

Style captions like the biggest channels, translate every line and publish all the tracks to YouTube — from your Mac, without touching the video.

Download on the Mac App Store

Free to download. macOS 14 or later.

Subtitles/CC

    Viewers pick their language in YouTube's own menu, and your styling comes with it — on desktop, mobile and TV.

    1. 01 — Style

      Say it likeMrBeast.

      Heavy bold words, thick outline, soft shadow, one word at a time. Or build your own style with 16 pens: font, color, glow, background and position.

    2. 02 — Translate

      Then in170 languages.

      Pick the languages, press Translate. Every line keeps its timing, colors and karaoke. Import SRT, VTT, SBV, ASS or TTML — or pull the track already on YouTube.

    3. 03 — Publish

      Publish.Done.

      Sign in with Google, pick a channel and a video, press once. The original and every translation go up as caption tracks.

    170 languagesfor the price ofhalf of one.

    €14.99/ month

    Billed monthly. Cancel anytime.

    • Unlimited export & upload
    • All 170 languages, all presets
    • Karaoke, roll-up and zoom effects
    Download for Mac

    Prices in euros; the App Store shows the price for your country. Subscribe inside the app and cancel anytime in your App Store settings.

    A human translator charges around $40 per language per video. Rainbow Captions Pro covers every video, every language, every upload.

    Start free: the editor, the live preview and your first 10 languages, upload to YouTube included.

    Questions

    Do I need to re-render or re-upload my video?

    No. The styling lives in YouTube's own caption format, so Rainbow Captions adds caption tracks to the video you already published. The video file is never touched.

    Where do the styled captions show up?

    Anywhere YouTube plays your video with captions on: in the browser, in the YouTube app on phones and on TV. Viewers switch languages in the usual captions menu.

    What can I do for free?

    The editor and the live preview are free, and so are your first 10 translated languages, including upload to YouTube. Pro removes the limit.

    Which subtitle files can I start from?

    SRT, VTT, SBV, ASS/SSA, TTML or plain text. You can also pull the caption track that is already on your YouTube video.

    Is this an official YouTube app?

    No. Rainbow Captions is an independent Mac app. It publishes through YouTube's official API after you sign in with your Google account.