Help for every step of the subtitle workflow.
Start with your first upload, choose the right download, understand the limits that apply, or work through a problem without guessing what the product is doing.
Getting started
Follow the complete path from a supported video upload to automatic captions, transcript correction, styling, sign-in, and download.
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Supported formats
Check accepted video containers, upload and duration limits, captioned MP4 output, and separate SRT, VTT, or TXT downloads.
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Free plan limits
See the current limits for duration, file size, monthly MP4 exports, projects, resolution, retention, and watermark-free output.
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Export options
Choose between a burned-in captioned MP4, a timed SRT or VTT track, and an untimed TXT transcript for the destination.
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Troubleshooting
Diagnose rejected uploads, missing speech, transcript problems, synchronization errors, failed exports, and expired source media.
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Billing and plans
Compare Free and Starter, understand monthly and annual billing, manage a subscription, cancel renewal, and review export credits.
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Find the answer at the point you need it
Before uploading a video
Check the supported formats and plan limits first when a file is unusually long, large, or encoded by a specialist camera or editor. The upload must contain readable video and spoken audio for automatic transcription. A limit message should tell you whether upgrading would help, while a damaged file, missing audio track, or unsupported hard ceiling needs a different fix.
While reviewing automatic captions
Treat the generated transcript as a strong first draft rather than a publishing guarantee. Play the real footage and correct names, numbers, punctuation, line breaks, and missed speech. Preview caption placement around faces, graphics, and interface controls. The editor preserves your changes in the project, while separate browser tools can convert, measure, merge, or retime existing subtitle files.
When choosing a download
Use a captioned MP4 when the exact styling must remain permanently visible. Use SRT or VTT when the destination should control a selectable caption track. Use TXT for spoken words without timing. Signing in is required for downloads so the project has an owner, but SRT, VTT, and TXT downloads do not consume a monthly MP4 export credit.
When something does not work
Begin with the exact stage that failed: file selection, upload, transcription, editing, render, or download. Keep the original file and project instead of repeatedly starting over. The troubleshooting guide explains the checks that isolate common causes and when an export credit is returned, so a recoverable product failure does not become lost work or an unnecessary subscription change.
Help center questions
Can I begin without creating an account?
Yes. You can upload a supported short video, generate captions, and edit the result as a guest. Sign in when you choose to download or save the project to your account.
Where can I see the current Free plan limits?
The Free plan limits guide lists duration, upload size, exports, resolution, projects, and retention using the same product configuration that enforces them.
Which download keeps the caption design?
The captioned MP4 burns the style into the video. SRT and VTT carry timed text but let the receiving player control its appearance; TXT has no cue timing.
Do failed renders use an export credit?
No. A failed or canceled render releases its reserved credit. A successful new MP4 render counts, while re-downloading the same completed export does not.