Subtitle Translator — Translate SRT, VTT & More to Any Language

What is a subtitle translator (and what should it do)

A subtitle translator takes a text-based subtitle file (SRT, VTT, ASS, etc.) and produces the same file in a different language. The scaffolding — cue indices, start/end timestamps, positional markers — must stay untouched. Only the dialogue text is translated.

A serious subtitle translator does three things a naive text tool cannot:

• Preserves timestamps. Byte-identical HH:MM:SS,mmm across source and target. No drift, no re-sync work in the video editor.
• Preserves cue numbers and structure. Cue 47 in source is cue 47 in target. ASS style headers, WebVTT positional cues, and SCC control codes are kept intact.
• Handles target-language length expansion. Spanish, French, and German translations run 15-35% longer than English. A good tool flags overflow against CPS (characters-per-second) reading-speed limits so you know which cues to review.

1. 1

   Upload subtitle file or paste text

   Drag .srt/.vtt/.ass/.sub/.sbv/.scc into the tool. Source language auto-detected; raw paste also works.

2. 2

   Select target language

   Pick from 133 target languages. Regional variants (pt-BR, pt-PT, zh-Hans, zh-Hant) available.

3. 3

   Download translated file in same format

   Same extension out. Cue numbers, timestamps, and structural markers preserved exactly.

1
00:00:03,120 --> 00:00:06,480
The quick brown fox jumps
over the lazy dog.

2
00:00:06,720 --> 00:00:09,900
It was a bright cold day
in April.

1
00:00:03,120 --> 00:00:06,480
El rápido zorro marrón salta
sobre el perro perezoso.

2
00:00:06,720 --> 00:00:09,900
Era un día luminoso y frío
de abril.

Notice: timestamps identical, only text changed.

AI subtitle translation vs human subtitler — the honest tradeoffs

AI translation is a category. Professional subtitling is a different category. Both are legitimate; the right choice depends on the content.

Honest positioning: for YouTube creators, e-learning, internal comms, and first-draft workflows, AI subtitle translation is production-ready today — the timestamp preservation alone saves hours of re-sync work. For broadcast television, streaming platform ingest (Netflix, Prime), legally regulated content, or festival submission, use AI as the base draft and hire a certified subtitler for cultural adaptation and CPS compliance. Both approaches beat rebuilding from scratch.

Translating closed captions (CC vs regular subtitles)

Closed captions include non-dialogue information that regular subtitles omit: sound descriptions, speaker labels, and non-verbal cues. VexaScribe treats all of them as translatable text.

• Bracket contents translated. [music] → [música], [applause] → [aplausos], [sirens] → [sirenas]. Bracket punctuation preserved.
• Speaker labels preserved and translated. JOHN: stays; the dialogue after the colon is translated. For gendered honorific languages (Japanese, Korean), speaker labels help the model pick the right register.
• Positional markers preserved. ASS \pos() tags, WebVTT line: and position: settings, and SCC control codes are kept byte-identical.

Not sure of the distinction? See What is closed captioning and Captions vs subtitles.

Free subtitle translator — what "free" actually means

"Free" means different things across tools. Here's the honest breakdown.

When to pay: if you translate more than 30 minutes of content per month, need batch processing, want a target language beyond the top 20, or need EU data residency and no-retention guarantees, the $2-10/month tiers cover it. If you translate a single YouTube video once a quarter, the free tier is genuinely enough.

Accessibility & compliance — WCAG, ADA, EAA

Subtitle translation intersects several accessibility regulations. Short reference:

• WCAG 2.1 Level A (SC 1.2.2) — captions required for all prerecorded audio in synchronized media.
• WCAG 2.1 Level AA (SC 1.2.4) — captions required for live audio content.
• EAA (European Accessibility Act, in force June 2025) — extends accessibility requirements to private-sector digital services and video content across the EU.
• ADA Title III — US courts have applied the ADA to public-facing websites and video; captions are treated as reasonable accommodation.

Multilingual requirements vary by jurisdiction and content type. Machine-translated subtitles are generally sufficient for internal training, corporate communications, and non-regulated commercial content. For public-sector broadcasting, educational content in regulated markets, and legally sensitive material, most compliance frameworks expect human review of translated captions.