What is AddSubtitle?
AddSubtitle is an AI-powered online video localization and editing tool that combines subtitle generation, translation and dubbing in a single browser-based workflow.
Its core capability is creating captions in more than one hundred languages with high claimed accuracy, then translating both subtitles and voiceovers so a video can reach international audiences.
It goes beyond captions into full localization: AI video dubbing produces voiceovers in multiple languages with lip-sync synchronization, and a video rewriting feature lets users edit the script while the AI regenerates matching voice and lip movements.
Users can customize subtitle styling, handle multiple speakers and review translations in a built-in text editor before exporting, with fast processing and instant download or sharing. Because it runs entirely in the browser, there is no software to install.
Target users include content creators, social media influencers, online educators, businesses, filmmakers, e-commerce sellers, marketers and students who need to make video content accessible across languages. Strengths include the breadth of localization features in one place, the wide language coverage, the lip-synced dubbing and the no-install convenience.
Limitations are that automatic translation and dubbing quality can vary by language and require human review for nuance, lip-sync on dubbed content is not always perfect, and the most capable features and higher usage sit behind paid tiers.
AddSubtitle uses a freemium model with a Try for Free option and premium pricing for more languages, longer videos and advanced dubbing. Pricing changes often, so check the official site for current plans.
Key features of AddSubtitle
- AI subtitles in 100+ languages
- Subtitle and voiceover translation
- AI dubbing with lip-sync
- Video rewriting with regenerated voice
- Multi-speaker handling
- Browser-based, no installation
AddSubtitle pros and cons
| Pros | Cons |
|---|---|
| All-in-one subtitle, translation and dubbing | Translation and dubbing quality varies by language |
| Very broad language coverage | Advanced features require a paid plan |
| Runs in the browser with no install | — |
AddSubtitle pricing
AddSubtitle uses a freemium model: a free plan to get started, plus paid plans that unlock higher limits and advanced features. Pricing changes often, so check the official site for the latest plans and any free trial before you buy.
Who is AddSubtitle for?
AddSubtitle is best suited for subtitle, translate and dub video in 100+ languages. Whether you are trying this kind of video & audio tool for the first time or use one every day, it is a credible option to shortlist — compare it with the alternatives and head-to-head comparisons linked on this page to find the best fit for your workflow and budget.
AddSubtitle at a glance
| Detail | Summary |
|---|---|
| Category | Video & Audio |
| Pricing model | Freemium |
| Free option | Yes |
| Best for | Subtitle, translate and dub video in 100+ languages |
| User rating | Not yet rated |
