免费工具
免费字幕工具
在浏览器中转换、检查、生成草稿，或进入登录后的字幕生成流程。
这里列出的工具都在浏览器本地运行，不上传文件、不调用供应商、不接受 YouTube URL，也不处理音频或视频。
转换字幕文件
subtitle converter
Converts existing SRT/VTT subtitle files and extracts TXT in the browser.
打开工具srt to vtt
Preserves subtitle line count, timestamps, and displayed text while converting SRT to VTT.
打开工具vtt to srt
Preserves subtitle line count, timestamps, and displayed text while converting VTT to SRT.
打开工具srt to txt
Extracts subtitle text and removes timing; TXT output is not a subtitle file.
打开工具vtt to txt
Extracts subtitle text and removes timing; TXT output is not a subtitle file.
打开工具txt to srt
Creates an editable SRT draft with estimated timing. Accurate synchronization requires the matching spoken audio.
打开工具srt to ass
Generates a basic ASS skeleton from SRT timing and text.
打开工具ass to srt
Keeps text and timing; advanced ASS styling, fonts, positioning, and effects may be removed.
打开工具csv to srt
Uses one fixed CSV template and provides SRT to CSV only as a companion mode.
打开工具smi to srt
Derives each end time from the next SAMI SYNC marker and keeps one language track per conversion.
打开工具检查和调整
subtitle checker
Checks SRT/VTT structure and readability in the browser without retiming from audio.
打开工具srt time shift
Shifts every SRT/VTT cue by one user-provided offset in the browser; it does not inspect media or repair cue-level drift.
打开工具dubbing pacing checker
Analyzes translated subtitle pacing in the browser; it does not generate audio or dubbing.
打开工具合并和拆分
生成字幕
“脚本 + 音频”生成需要登录并使用你自己的文件。音频、视频和 MP4 工具也为短的自有文件提供免登录试用。
Script to Subtitles
Creates accurate subtitle assets from a script and matching owned audio with entitlement checks.
打开工具audio to srt
Accepts owned audio files only; long files, batch work, and precise alignment route to paid plans.
打开工具video to srt
Accepts owned video files only; it does not download remote videos.
打开工具mp4 to srt
Uses the owned-video generation runtime for MP4 files; it does not download remote videos.
打开工具