字幕制作NEW
制作与转换 SRT / VTT 字幕
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AllFreeTool is a free online subtitle editor for SRT, VTT and plain text subtitle files. You can view the cues on a timeline, shift every timestamp forwards or backwards when the audio and video drift apart, merge two subtitle files into one, turn plain text into a timed SRT, or strip a subtitle down to just its text. Everything is parsed in your browser, so your files are never uploaded.
It suits fixing subtitles that run slightly late after an edit, combining the two halves of a subtitle split across two episodes, creating a first draft for a short clip, or pulling the dialogue out of a file for translation or for a script. The timeline view shows every cue placed by its start time, which makes a drift problem obvious at a glance.
Why use 字幕制作 on AllFreeTool?
Timeline View
See every cue laid out by its start time, with the total duration of the file.
Timing Shift
Move all timestamps earlier or later in one step to fix an audio sync problem.
Merge Files
Combine two subtitle files into one, ordered chronologically by their timings.
Local Parsing
The subtitle format is parsed in the browser, so no file is uploaded.
How to use 字幕制作
Choose a Feature
Pick view, shift, merge, text to SRT, or extract text for the operation you need.
Load the File
Select your SRT, VTT or text subtitle file, and a second file when merging.
Process and Download
Apply the change and then download the resulting subtitle file.
Common questions
When would I need to shift the timings?＋
When the audio and the picture fall out of step, which usually happens after a video is trimmed or a scene is cut out. Subtitles then appear late or early. The shift feature moves every cue by the same amount, which fixes a consistent drift in a single operation.
What does merging do exactly?＋
It takes two subtitle files, combines all of their cues, and orders the result by start time before saving it as a single SRT. This is the usual way to join the subtitles for two halves of the same episode, or to combine a feature track with a translation track.
Can I create subtitles from plain text?＋
Yes. The text to SRT feature treats each line as one cue and generates the timestamps automatically, using a duration per line and a gap between lines that you set. That gives you a working starting point to refine rather than an empty file.
Is my subtitle file uploaded?＋
No. The parser and the serialiser are both part of the page, and no network request is made. Your subtitle text stays on your own machine, and the file you download is the only copy that exists outside your browser.