Show HN: SubtitleGenerator - Fix subtitles with a low-confidence review queue

SubtitleGenerator, a free browser-based AI subtitle generator, launched with a low-confidence review queue that flags uncertain words for manual correction, re-transcription, or editing, and offers 33 caption styles and export to Premiere Pro and DaVinci Resolve. The tool processes video locally, uploading only extracted audio for transcription, and exports render in the browser.

Automatic Free AI subtitle generator that's actually fast to fix Fix the words AI got wrong — in seconds AI flags uncertain words automatically. You decide whether to keep, edit or re-transcribe each cue. User-triggered Re-transcribe just the part that's wrong Pro · Optional Turn on high-accuracy transcription Interactive correction demo Edit the highlighted word below, or retry only this cue. The camra stays on your device. Upload your video / upload Free to start, no signup required. Generate, fix, translate, style and export subtitles in one browser workflow. Browse all 33 styles and five core tools below. Pro and Max also add full-track subtitle translation in the same editor. Shared catalog · homepage and editor 33 caption styles, in six families Typography, framing, highlighting and motion change together. Hover a card to see it animate. Clean Lower Third Noto Sans · Tutorials · Interviews Soft Box Noto Sans · Interviews · Course lessons Editorial Serif Noto Serif · Education · History explainers Mono Note Noto Sans Mono · Screen recordings · Developer tutorials Hype Bricolage Grotesque · Shorts · Talking head Highlighter Bricolage Grotesque · Talking head · Tutorials Creator Outline Bricolage Grotesque · Reels · Reactions Punch Cut Bricolage Grotesque · TikTok · Gaming highlights Karaoke Bricolage Grotesque · Voiceover · Reddit stories Sing Along Noto Sans · Music · Lyrics Progress Line Noto Sans · Lyrics · Motivation Film Title Noto Serif · Stories · True crime Quiet Story Noto Serif · Documentary · Interviews Documentary Rule Noto Sans · Explainers · History Comic Burst Bricolage Grotesque · Reactions · Comedy Neon Bounce Bricolage Grotesque · Entertainment · Music Game Callout Noto Sans · Gaming · Sports Studio Pill Noto Sans · Podcasts · Interviews Newsroom Noto Sans · Updates · News Brand Block Bricolage Grotesque · Agencies · Product videos MrBeast Flash Bricolage Grotesque · YouTube Shorts · Hype edits Hormozi Drive Bricolage Grotesque · Talking head · Motivation Typewriter Noto Sans · Storytime · Voiceover Glass Transcript Noto Sans · Transcripts · Interviews Lyric Stack Noto Sans · Music · Lyric edits Award Card Noto Serif · Trailers · Awards VHS Retro Bricolage Grotesque · Retro edits · Comedy Impact Meme Bricolage Grotesque · Memes · Reactions Vlog Diary Noto Sans · Vlogs · Travel Podcast Bar Noto Sans Mono · Podcasts · Talk shows One Word Spotlight Noto Sans · Shorts · Talking head Karaoke Fill Noto Sans · Music · Karaoke Wobble Word Bricolage Grotesque · Shorts · Comedy Fonts · hover or focus to replay Subtitle fonts that actually fit A curated open-licence font pool, previewed on your own video before you commit to one. Checks · hover or focus to replay Uncertain words are already flagged AI surfaces the risky words. You keep each word, type the correction, or retry that cue. Privacy · hover or focus to replay Your video stays on your device The source video never uploads. Only extracted audio is sent for transcription, and exports render in your browser. Read the privacy details /legal privacy Export · hover or focus to replay Browser export with real progress See render progress while the browser creates your captioned video without uploading the original file. NLE files · hover or focus to replay Export to Premiere Pro & DaVinci Resolve Export SRT, VTT, ASS, SSA, SBV, SMI, TXT or JSON with timing ready for your editing workflow. See the NLE workflow /features/premiere-davinci-captions Upload your video / upload Free to start, no signup required. How to add subtitles to video in 4 steps The workflow stays on one page from local file selection through correction, styling and export. Drop your video in No account, no install. Choose an MP4, MOV, WebM or MKV from your device. AI writes the subtitles Transcribed in the language that is spoken, with word-level timing and every uncertain word already flagged. Fix and style Fix flagged words, edit cues, choose one of 33 styles and preview the canvas. Export Export a burned-in video or any of eight subtitle formats for your editor. Upload your video / upload Free to start, no signup required. Who it's for Six creator workflows, one fast path from uncertain words to publish-ready captions. Podcasters Clear spoken-word clips and check names before publishing. YouTube creators Choose SRT-style workflows or burned-in caption layouts. Short-form creators Use 9:16 safe areas and word-level visual language. Editors Prepare subtitle assets before they reach Premiere or Resolve. Educators Keep dense explanations readable and easy to correct. Agencies Start from branded styles without hiding the correction workflow. Upload your video / upload Free to start, no signup required. Free to start, Pro when you're ready Generate and edit for free. Upgrade for clean HD exports and reusable subtitle files, or add usage on demand. What you won't find in other subtitle tools Free $0 Try the full editor, watermarked - Every uncertain word flagged for review - 60 minutes of subtitle time a month, stated up front - All styles & animations - Up to 720p export, small watermark - Up to 512 MB per video - Videos up to 10 mins Start free / upload Pro $9 / month or $90 / year · 2 months free The full editor, no watermark - Re-transcribe just the part that’s wrong - High-accuracy transcription mode - 8 subtitle formats: SRT, VTT, ASS, SSA, SBV, SMI, TXT, JSON - Subtitle translation - No watermark & HD quality - Up to 1.5 GB per video - Videos up to 30 mins · 700 minutes of subtitle time a month - Custom fonts & saved brand styles Max $15 / month or $150 / year · 2 months free Everything in Pro, taken further - Everything in Pro - Up to 3 GB per video - Videos up to 1 hour · 1,400 minutes of subtitle time a month PAYG Need more time, not another subscription? Add time from $3 — every $1 adds 20 minutes, and they never expire. Upload your video / upload Free to start, no signup required. Questions 01What can I do with the free subtitle generator? You can generate and edit one video without signing up, with up to 10 minutes per video, all 33 styles, 720p export and a small watermark. If you create an account, the Free plan includes 60 minutes of subtitle time each month. 02Do you keep my video? No. Your video file stays on your device. Only the audio is sent for transcription, and it is deleted afterwards. Exports render in your browser. 03What if it misses words? Some always slip through — fast speech, accents, background music. The difference is you don’t have to hunt for them: every word the model was unsure about is flagged in the text and marked on the timeline, and silent stretches with no subtitle are outlined too. You fix the three that are wrong instead of rewatching twelve minutes. 04Can I click anywhere on the timeline to jump there? Yes — click any point on the waveform or any subtitle block and the playhead, the caption list and the preview all move together. Drag a block’s edge to retime it. Nothing jumps somewhere you didn’t ask for. 05Can I add a subtitle where the AI didn’t put one? Yes, anywhere — including before the first line, which is the one place most editors make hard. Every silent gap shows an Add cue button right where the gap is, so you never have to fight the timeline to get a line in. 06Can I edit the subtitles after generating? Yes. Retype any word, nudge word-level timings, or re-transcribe just a selected range without redoing the whole file — and editing text never changes your styling. 07What video formats can I upload? MP4, MOV and WebM, in landscape, portrait or square. Export as burned-in video, or as SRT, VTT or TXT. 08Does it work on my phone? Yes. Generating and editing work on modern mobile browsers. Long or high-resolution exports are faster on a desktop. Upload your video / upload Free to start, no signup required.