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I built a free batch subtitle converter — feedback welcome!

Hey everyone — I’m an indie developer.When I’m editing or posting videos, I constantly need to convert subtitle formats — SRT to VTT for HTML5 players, VTT back to SRT for editors, or ASS/SBV exports into something usable. And it’s rarely one file; it’s usually several at once. The converters I found were either “upload to our server first” or free for one file only — batch meant paying, so I was stuck converting one by one. Subtitles sometimes have private or client content, so uploading fel

五维评分

付费意愿
25
需求真实度
45
个人可落地
92
竞争空间
28
新鲜度
35

AI 分析

痛点:视频创作者和字幕工作者需要批量转换字幕格式,但现有工具要么强制把文件上传到服务器(涉及客户隐私风险),要么批量功能必须付费,只能一个个手动转换。

目标用户:视频剪辑师、字幕与本地化从业者、内容创作者,尤其是处理客户私有素材、对文件上传敏感的自由职业者

证据:The converters I found were either “upload to our server first” or free for one file only — batch meant paying, so I was stuck converting one by one. Subtitles sometimes have private or client content, so uploading felt risky; paying just to batch a format change also didn’t feel worth it.

变现:纯转换功能保持免费以获客,Pro 订阅($5–9/月)解锁增值能力:保留 ASS 样式并映射到 SRT/VTT、批量时间轴偏移、字幕质量检查(QC)、双语与翻译、CLI/API 供本地化团队集成;面向字幕公司按席位收费。

MVP:两周内做出纯前端(JS/WASM)的批量转换器:在本地完成转换且不上传文件,支持 SRT/VTT/ASS/SBV 互转、拖拽批量处理、时间轴批量偏移;先用免费版在 r/VideoEditing、r/editors 等社区引流,再根据反馈上线样式保留和翻译作为付费点。

竞品:Subtitle Edit、Aegisub、Kapwing、Veed 等在线字幕转换器、CueConvert(本帖,免费竞品)

摘要:独立开发者因不满现有字幕转换器“必须上传服务器”或“批量需付费”,自建了完全免费、在浏览器本地批量转换的 CueConvert,支持 SRT/VTT/ASS/SBV。作者本人明确表示“只为批量改个格式付费不值得”,说明痛点真实,但因免费替代品众多且用户付费意愿弱,单纯做格式转换很难直接变现。