Software » Subtitle » Subtitle Edit 5.2.0 / 5.3.0 Beta 11

v5.3.0-beta11 (24th of September 2026)

* Add syntax highlighting in Source view for WebVTT, LRC and SCC, and basic coloring for every other text format
* Remux: mix audio files into one track with per-file volume - thx ghostminhtoan
* TTS review: show the waveform position, click it to go to a position - thx subof
* Batch convert: prevent sleep while converting - thx verbal666
* Remember "Merge continuation lines" max gap and max characters
* SenseVoice: offer to re-download models from before the CMVN fix
* Speech to text: explain a CUDA run on a CPU-only build - thx Marooo1122
* Improve performance of OCR fix, fix casing and video preview ticks
* Fix saving a subtitle opened from an audio file overwriting the audio - thx MG240
* Fix LRC header replaced by the default header, and Source view losing an edited header/footer - thx MG240
* Fix Source view: crash on OK when the format throws, silently taking lines that parse as another format, and a deleted header coming back
* Fix Source view highlighting: a number-only SubRip text line styled as a cue number, unclosed XML comments
* Fix speech to text with Purfview Faster Whisper XXL and the "anime.ja" model (and hide translate for it) - thx dustwanderer
* Fix speech to text batch statuses not reset on each run - thx Marooo1122
* Fix undocked full screen video player leaving full screen when Alt+F4 minimizes it - thx GrampaWildWilly
* Fix native file pickers opening off screen / on another monitor - thx GrampaWildWilly
* Fix Remux "finalizing" progress animation not stopping when ffmpeg exits - thx GrampaWildWilly
* Update CrispASR to v0.8.36
* Update llama.cpp to b11149
* Update Japanese translation - thx hisui3393

v5.3.0-beta10 (23rd of September 2026)

* Add "Edit second subtitle settings..." to the Video menu (restyle the second subtitle without the file picker) - thx GrampaWildWilly
* Add EBU STL to the "Save as" format list - thx Triathlon-rally
* Add audio track picker for the FFmpeg video player - thx fraternl
* Find/Replace: show the replace count in the window, add button icons and a search history dropdown - thx fraternl
* Remux: show each audio/subtitle file's folder, and a "finalizing" phase while the mp4 index is moved to the front - thx GrampaWildWilly
* Speech separation ("Remove original speech", "Isolate speech", speech-only waveform): show progress and time left - thx to285
* Shot changes: allow sensitivity 0.05-0.95 in 0.01 steps like SE 4 - thx kadrimarzouki
* seconv: --no-language-suffix keeps "forced" and stream labels, drops only the language code - thx Mafuyu0
* Refresh auto-translate API model lists (DeepSeek, Anthropic, Gemini, OpenAI, Perplexity)
* Improve idle performance: main window tick pumps only run while a video is loaded - thx ivandrofly
* Fix waveform shaking/jerky cursor on Windows (16 ms tick pump ran at 31 ms with the default timer resolution) - thx mariajuferreira1958-creator
* Fix keyboard focus staying in the main window when a non-modal window (e.g. Remux) opens - thx GrampaWildWilly
* Fix Enter on a split button (Remux, Burn-in, Batch convert, ...) running the window's default button instead - thx GrampaWildWilly
* Fix Alt+Space system menu opening partially off-screen or on the wrong monitor - thx GrampaWildWilly
* Fix change frame rate "From" not preset with the current frame rate, and frame rate combo boxes using the OS decimal separator - thx fointypinger
* Fix ASSA styles dialog losing every style for headers without an exact "ScriptType: v4.00+" and for "*"-prefixed style names - thx hisui3393
* Fix VobSub position ignoring the image crop (seconv ASSA alignment auto-detect tagged every cue {\an7}/{\an8}) - thx gambar3
* Fix WhisperX model dots always green, redundant download button, distil-large-v3.5/anime.ja model names, and the Lightning checkpoint message - thx GitGianluc
* Update WhisperX standalone to build 103
* Update Avalonia to 12.1.3
* Update Czech translation - thx Matj Fouma
* Update Italian translation - thx bovirus
* Update Chinese Traditional translation - thx love80312

v5.3.0-beta9 (22nd of September 2026)

* Add TranslatePsy-AfriSLM 4B (English <-> 19 African languages) to the llama.cpp auto-translate models
* Add Romanian OCR fix replace list (cedilla / to comma below /) - thx Gabriel
* Batch convert: OCR language per file from the container track or file name (e.g. "Movie [fra].sup") - thx Gabriel
* Remux: show durations, elapsed/remaining time, and load the remuxed video when done - thx ghostminhtoan
* OCR: remember the spell check dictionary per language (no more jumping back to "English (Australia)") - thx Gabriel
* Clone from video: offer speech-to-text for the clips when the TTS engine needs transcripts (OmniVoice) - thx nielka98
* Point sync via other subtitle: browse from the current subtitle's folder - thx fraternl
* seconv: add --ocr-auto-detect-assa-alignment - thx gambar3
* seconv: add --no-language-suffix to write auto-translated files without the language code - thx Mafuyu0
* Improve performance of binary OCR matching, select-all timing commands, merge lines and the "Remove text for HI" dialog
* Fix ASSA/SSA styles dialog changing the style of other lines when an original subtitle is loaded - thx hisui3393
* Fix "Remove text for hearing impaired" changing dashes/spaces with no option selected - thx kadrimarzouki
* Fix WebVTT to SubRip wrapping every line in a font tag with the player's default text color - thx maknol
* Fix "Remove color tags" leaving garbage for rgba() colors
* Fix Matroska subtitle extraction failing on busy network shares (short reads) - thx shotfirer
* Fix seconv DVB-sub image export placing images at twice the offset, and MKV DVB-sub going through OCR
* Fix audio clip extraction on zero/negative duration lines (ffmpeg -t 0 = whole file) in extract audio, clone voice and speech-to-text on selected lines
* Fix FFmpeg video player stuck at the end after playing to it, and frame step keys dead on audio-only files
* Fix layout 14 filmstrip going blank near the end of the video
* Fix "Show speech only" waveform reverting to the full mix after undocking, and drifting with SMPTE timing
* Fix second subtitle "Remember these settings" failing with audio-only media
* Fix settings import bringing back old shortcut defaults (e.g. Cmd+H for Replace on macOS)
* Fix OCR language auto-detect taking title words like "No"/"It"/"Be" for language codes (Dr.No.sup as Norwegian)
* Fix "Generate background music" discarding the clip just listened to and generating a new one
* Fix "Improve time codes" moving end times with "Adjust end times" off
* Fix text to speech casting listing Zonos without an install
* Update llama.cpp to b11070
* Update FFmpeg (Windows) to 9.0.2
* Update Italian translation - thx bovirus
* Update Polish translation - thx potplayer-fanpack

v5.3.0-beta8 (21st of September 2026)

* Add editor-style layout 14 with a track timeline (video row and subtitle rows above the waveform)
* Add sound on Linux to the FFmpeg video player (PulseAudio / PipeWire)
* FFmpeg video player: real frame index, seek-free frame stepping (also variable frame rate) and faster scrubbing
* Add "Move lines: shorten previous/next line instead of overlapping it" option - thx gambar3
* Add width setting for the "initial text of selected line" waveform toolbar box - thx kadrimarzouki
* WhisperX: new standalone build with live output (no more "hang" at "Performing transcription..."), and an update prompt - thx gambar3
* Batch convert: lock Add/Remove/Clear while converting - thx yozongu
* OCR "Add character" windows: show subtitle images on the image preview background - thx Nino-kun
* Fix many ffmpeg video generation bugs (burn-in, cut, re-encode, remux, write chapters, blank video, add/remove embedded subtitles)
* Fix "Add/remove embedded subtitles" dropping extra audio tracks and font attachments
* Fix burn-in of Blu-ray sup showing subtitles too early when the first subtitle starts late
* Fix window position lost when closing SE with a minimized window - thx GrampaWildWilly
* Fix format properties button missing after restart - thx GrampaWildWilly
* Fix waveform subtitle blocks vanishing when scrolling in TTS review / Improve time codes - thx gambar3
* Fix underscores missing from file, audio track and plugin names in menus
* Fix error log flooded with "disposed mpv player" entries after closing Visual sync / Point sync
* Update Chinese (Simplified) translation - thx emsb8888-prog
* Update Japanese translation - thx hisui3393
* Update Korean translation - thx 12si27
* Update Polish translation - thx potplayer-fanpack

v5.3.0-beta7 (20th of September 2026)

* Add "Improve time codes (forced alignment)" in Tools: re-time a roughly synced subtitle with a Crisp ASR forced aligner, with waveform preview
* Add "Isolate speech" option to Crisp ASR speech-to-text (removes music/noise before transcribing)
* Add "Show speech only" waveform option
* Add "Remove original speech" option to text to speech
* Add Supertonic-3 (Crisp ASR) text to speech engine
* Add Voxtral F16 model to Crisp ASR speech-to-text
* Add "Move text after cursor, go to next, play and pause at end" shortcut - thx kadrimarzouki
* Add optional "initial text of selected line" box to the waveform toolbar - thx kadrimarzouki
* Add two "line break" items to the waveform toolbar (choose where the toolbar wraps)
* Remember the second subtitle file after restart - thx kadrimarzouki
* Point sync: open at the line selected in the main window - thx TristisOris
* Settings backup: interval 0 = backup at every start, unchanged settings are skipped - thx GrampaWildWilly
* Spell check: accept capitalized lowercase-only words at sentence start (e.g. Dutch "Oktober") - thx fraternl
* OCR word split and auto-break of 3+ lines now find the best split - thx ivandrofly
* Zonos (Crisp ASR) is no longer...

Create/adjust/sync/translate subtitle lines
Convert between SubRib, MicroDVD, Advanced Sub Station Alpha, Sub Station Alpha, D-Cinema, SAMI, you-tube sbv, and many more (300+ different formats!)
Cool audio visualizer control - can display wave form and/or spectrogram
Video player uses mpv, DirectShow, or VLC media player
Visually sync/adjust a subtitle (start/end position and speed)
Audio to text (speech recognition) via Whisper or Vosk/Kaldi
Auto Translation via Google translate
Rip subtitles from a (decrypted) dvd
Import and OCR VobSub sub/idx binary subtitles
Import and OCR Blu-ray .sup files - bd sup reading is based on Java code from BDSup2Sub by 0xdeadbeef)
Can open subtitles embedded inside Matroska files
Can open subtitles (text, closed captions, VobSub) embedded inside mp4/mv4 files
Can open/OCR XSub subtitles embedded inside divx/avi files
Can open/OCR DVB and teletext subtitles embedded inside .ts/.m2ts (Transport Stream) files
Can open/OCR Blu-ray subtitles embedded inside .m2ts (Transport Stream) files
Can read and write both UTF-8 and other unicode files and ANSI (support for all languages/encodings on the pc!)
Sync: Show texts earlier/later + point synchronization + synchronization via other subtitle
Merge/split subtitles
Adjust display time
Fix common errors wizard
Spell checking via Libre Office dictionaries (many dictionaries available)
Remove text for hear impaired (HI)
Renumbering
Effects: Typewriter and karaoke
History/undo manager (Undo=Ctrl+z, Redo=Ctrl+y)
Compare subtitles
Multiple search and replace
Change casing using names dictionary
Merge short lines/split long lines
Export to PNG images (+bdn xml), Adobe Encore FAB image script, VobSub, Blu-ray sup, EBU stl, PAC, and plain text