Questions,answered
From getting started to caption quality, YouTube integration, and billing, here are the questions we hear most.
For anything else, just reach out.
General
A multilingual caption service for YouTube creators.
AI transcribes your video, translates it into multiple languages, and then either uploads the finished captions to YouTube automatically or lets you download them as SRT files. Everything from captions to upload happens in one flow.
YouTube auto-captions mostly transcribe the original language, so accuracy varies and translation quality is limited.
Mearri translates with the video context and the speaker tone in mind, tunes reading speed and line breaks like proper captions, and produces several languages. You can also edit before uploading.
Only videos you hold the rights to. Paste a YouTube link or upload a video file directly. Both Shorts and long-form work.
Yes. Beyond captions, your video title and description can be translated per language, making it much easier for overseas viewers to find and click your video.
Yes. After captions are generated, you can review and edit each line before uploading.
It depends on the video length and how many languages you pick. You can watch the progress in real time, and we notify you when it is done.
Quality
Mearri does not machine-translate line by line. It translates with the whole video context and the speaker tone in mind, filters awkward lines with an automatic quality check, and aims for human-review-level captions.
You can always review and fix the result yourself at the end.
Lines are not translated in isolation; the surrounding context is considered together. After a first pass, an automatic evaluation reworks parts that are awkward or off.
Yes. Reading speed (CPS), line-break positions, and display timing are tuned to caption standards automatically, so viewers can read comfortably.
26+ languages. You can pick several at once and produce them together.
Yes. YouTube indexes caption text for search and recommendations, and captions raise completion rates.
We have gathered the real research and data on this in our Insights.
YouTube
Connection uses Google OAuth 2.0, and we never store your password. Tokens are encrypted, and you can revoke access anytime from your Google account settings.
Finished captions are added to your video as per-language CC tracks automatically. If you prefer, you can download the files and upload them yourself.
Yes. You can upload right away, or schedule publishing for the date and time you want.
When you disconnect, tokens stored on our servers are deleted immediately. See the Privacy Policy for details.
Billing
1 credit equals 1 minute of captions. Credits are deducted by video length, with no subscription, so you top up only what you need.
Yes. Every new account gets 5 free minutes. Before paying, try a Short to check the caption quality and YouTube auto-upload for yourself.
No. All packs (10 / 25 / 50 minutes) share the same rate of KRW 1,000 per minute. This is a launch price at 50% off the list rate of KRW 2,000.
Just pick the pack size you need.
Credits are deducted by number of languages times video length. For example, a 10-minute video in 3 languages uses 30 credits.
Length is rounded up to the minute: a 61-second video counts as 2 minutes, and anything under a minute counts as 1.
If a job fails, the credits deducted for it are returned automatically. Failures caused by a service fault are also restored after verification.
Purchased credits are valid for up to 1 year from the payment date and expire afterward. Free credits granted at sign-up are valid for 3 months.
Payments are processed securely via KG Inicis (PortOne).
Unused credits can be refunded within 7 days of payment, while credits already used (processing has started) may not be eligible for withdrawal or refund. Refunds are issued as a cancellation on the credit card used, and cash refunds are not available.
See the Terms for details.
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