Subtitle guides
Everything you can do with subtitles — extraction, conversion, AI generation, translation and repair.
Generate & translate
Generate subtitles from any video with AI
Auto-generate accurate SRT subtitles from any video with Whisper AI speech recognition — 90+ languages, perfect timestamps, fully offline on Windows & macOS, no fees.
AI subtitle translation with DeepSeek
Translate subtitles with DeepSeek AI across 25+ languages, cue by cue, with full context and timing preserved. Bring your own API key — no per-file fees from us.
How to translate SRT subtitles into another language
Translate SRT and ASS subtitle files into 25+ languages with DeepSeek AI while keeping timing and formatting intact. Bring your own API key, no per-file fees.
Extract subtitles
How to batch-extract subtitles from an entire TV season
Extract, generate, translate or sync subtitles for a whole season in one run. Drop a folder of episodes in and let batch processing handle every file automatically.
How to extract subtitles from MKV files
Extract embedded SRT, ASS, PGS or VobSub subtitle tracks from any MKV file in seconds — offline, on Windows and macOS, with built-in OCR for image-based subtitles.
How to extract subtitles from MP4 files
Pull embedded subtitle tracks out of MP4, M4V and MOV files and save them as SRT. MOV_TEXT timed-text tracks are converted to SRT automatically — offline on Windows & macOS.
Fix & clean up
What to do when you can't find subtitles in your language
Downloaded a subtitle but it's out of sync, or your language isn't listed at all? Fix the timing automatically or translate any subtitle with AI.
How to fix out-of-sync subtitles automatically
Subtitles ahead of or behind the audio? Fix them automatically: acoustic alignment matches every line to the real dialogue — no manual offsets, offline on Windows & macOS.
How to fix broken characters and encoding in subtitle files
Subtitles showing é, ’ or ??? instead of accents or non-Latin text? Auto-detect the original encoding (Windows-1252, ISO-8859-9, GBK, Shift_JIS…) and convert to UTF-8.
How to remove SDH annotations from subtitles
Turn SDH (hearing-impaired) subtitles into clean dialogue-only subtitles: remove [sound effects], (MUSIC), speaker labels and caption artifacts from SRT files — offline.
Convert subtitles
How to convert ASS/SSA subtitles to SRT
Convert Advanced SubStation Alpha (.ass/.ssa) subtitles to plain SRT for TVs, Plex and players that don't support styling — offline, with timing preserved exactly.
How to convert SUB/IDX (VobSub) subtitles to SRT
Convert DVD VobSub subtitle pairs (.sub + .idx) into editable SRT files with OCR — extract from MKV or convert standalone files, offline on Windows and macOS.
How to convert any subtitle format to SRT
One offline tool that converts 30+ subtitle formats to SRT: TTML/DFXP, SAMI/SMI, STL, SCC, MicroDVD, MPL2, SubViewer, LRC, SBV and more — with automatic encoding detection.
How to convert SUP (Blu-ray PGS) subtitles to SRT
Turn image-based Blu-ray PGS/.sup subtitles into editable SRT text files with OCR. Extract the track from your MKV and convert it offline on Windows or macOS.
How to convert VTT (WebVTT) subtitles to SRT
Convert WebVTT .vtt subtitle files — from YouTube, web video or streaming rips — into universally supported SRT files. Offline converter for Windows & macOS.
Creators & teams
Transcribe Zoom, Teams and Webex recordings with AI
Turn recorded meetings into accurate, searchable transcripts with offline AI — no cloud upload of your calls, no per-minute transcription fees.
Convert video or audio to text with AI
Transcribe podcasts, interviews, lectures, meetings or any recording into accurate text — offline AI, no per-minute fees, no cloud uploads.
Generate YouTube captions and subtitles with AI
Turn your raw footage into accurate YouTube captions with offline AI transcription. Export SRT or VTT, ready to upload — no per-minute fees, no uploads.