Software » Subtitle » Subtitle Edit 5.1.0 / 5.2.0 Beta 16

v5.2.0-beta16 (17th of August 2026)

* Add a chapter editor with Matroska/MP4/OGM chapter formats (Video > More > Chapters) - thx alex64-pb
* Add "Find voices in video and clone them all", plus cloning the voice of each line from the video - thx invio-a11y
* Add the Voxtral backend to Crisp ASR speech to text - thx AmineI
* Add "Final Cut Pro Xml Captions" export
* Add DaVinci Resolve marker EDL import/export
* Add reading of Adobe Premiere Pro "Markers" panel csv exports
* Add text box "Copy (alternative)"/"Paste (alternative)" shortcuts, and make Shift+Delete really cut - thx GrampaWildWilly
* Add .avi/XSUB reading to "seconv"
* Add reading of IEEE float and WAVE_FORMAT_EXTENSIBLE wav files for the waveform
* Open BDN xml and Final Cut Pro image xmeml from the main window (via OCR)
* Show translation progress in batch convert - thx emsb8888-prog
* Name batch auto-translated files after the target language - thx emsb8888-prog
* Name forced container tracks with a ".forced" token in "seconv"
* Update Crisp ASR to v0.8.29, and Chatterbox to the versioned V3 models with cross-lingual voice cloning
* Improve container support after sweeps of MP4Box, ffmpeg, mkvmerge, TSDuck and Bento4 output
* Improve broadcast format round-trips (PAC, Cavena 890, SCC, Cheetah, MacCaption, EBU-TT-D, Ayato, CapMaker Plus, IMSC 1.1)
* Improve Apple format support - read Final Cut Pro captions and current fcpxml versions
* Improve Adobe format support - read the EDLs and XMP markers Premiere/After Effects write, fix Encore round-trips
* Fix negative time codes being zeroed when selecting a line - thx DexKen
* Fix reading of Matroska files on a network share still being slower than in beta 13 - thx 1476523
* Fix Ctrl+V in the subtitle grid not selecting/scrolling to the pasted lines - thx Davanix
* Fix Ctrl/Cmd+V not overwriting the selected lines in the subtitle grid - thx rosilucia-hub
* Fix Sub Station Alpha (.ssa) style colors being written as unreadable 32-bit values - thx schabau
* Fix speech to text clipping the audio sent to the engine - thx AmineI
* Fix Faster-Whisper XXL/CTranslate2 getting the extracted wav instead of the source file - thx popoche
* Fix DVB subtitle timing when a cue starts at the video's first frame
* Fix the DaVinci Resolve csv "Play" flag being read from the wrong column
* Update Bulgarian translation - thx jekovcar
* Update French translation - thx Need74
* Update Polish translation - thx potplayer-fanpack
* Update Russian translation - thx jekovcar

v5.2.0-beta15 (16th of August 2026)

* Add IndexTTS 2.5 as a text to speech engine, with emotion and speaking rate control
* Add MiLMMT-46 translation models to the llama.cpp translate engine
* Add HunyuanOCR 1.5 to the llama.cpp OCR model list
* Add the "llama.cpp advanced" engine to batch convert, with custom prompt and parameters - thx emsb8888-prog
* Add "Convert colors to dialog", "Snap time codes to frames" and "Add folder..." to batch convert
* Add a "Play current" button to the AI review window
* Add a reset-to-default button for the auto-translate prompt
* Add an engine download/update button to the llama.cpp OCR settings - thx fraternl
* Ask before the first voice clone in "Text to speech"
* Open SMPTE-TT files with bitmap captions
* Show "List shot changes" whenever shot changes exist, and keep edits made in the list
* Show the errors that could not be fixed in "Fix common errors" - thx radektuma
* Make "seconv" fail on unknown options, and add --json output everywhere plus --help-json
* Improve subtitle format detection and reading after a sweep of the VideoLAN/CCExtractor sample files
* Improve OCR line splitting with an adaptive minimum line height, plus an un-italic retry in nOCR
* Fix reading of Matroska files on a network share being much slower in beta 14 - thx 1476523
* Fix whisper.cpp not starting on Linux - thx keremyavuz
* Fix crash when closing "Text to speech" after reviewing audio - thx cvrle77
* Fix new lines in ASSA getting the first style in the header instead of the neighbouring one - thx Khaztaroth
* Fix changing format to Advanced Sub Station Alpha ignoring the default styles storage category - thx windias
* Fix column paste going to the wrong row when the rows were selected top-to-bottom - thx rosilucia-hub
* Fix "Remove text for hearing impaired" removing dialog dashes in 3-line subtitles - thx ubeccp6a
* Fix "Remove text for hearing impaired" with a speaker name on a line of its own - thx ubeccp6a
* Fix speech to text with Qwen3 ASR failing with a JSON error on comma-decimal locales - thx zielinou
* Fix switching audio track generating a waveform even with auto-generate off - thx Davanix
* Fix italic OCR losing word spacing and reading "l" as "i" with binary image compare - thx Miggu82
* Fix OCR replace lists dropping all but the first "if spelled correctly" section - thx Miggu82
* Fix six small regressions found in the previous day's changes
* Update Korean translation - thx 12si27
* Update Polish translation - thx potplayer-fanpack
* Update Portuguese (Brazil) translation - thx igorruckert
* Minor performance improvements in seconv and auto-break

v5.2.0-beta14 (15th of August 2026)

* Add back .webm output for "burn-in subtitle", add .ts, and offer only containers the codec can use
* Let "Visual sync" find or open a video when only a subtitle is open
* Show install status dots for llama.cpp in the OCR window engine and model lists
* Fix OCR with llama.cpp returning nothing but blank lines - thx fraternl
* Fix "AI review" pairing corrections with the wrong lines - thx coreyjv
* Fix undo stepping back through a waveform drag instead of to before it - thx thelabcat
* Fix overlapping lines from speech to text with Crisp ASR and Parakeet - thx perkesfurmah-collab
* Fix the subtitle grid jumping away from the line being edited when a row changes height - thx radektuma
* Fix column shortcuts not working while the text box has focus - thx SiaL8er
* Fix speech to text failing to extract audio with "-map 0:1 matches no streams" - thx slothsh
* Fix "Fix short display time" listing fixes that change nothing - thx Pemicope
* Fix Google Translate V1 inserting blank lines in multi-line texts - thx radektuma
* Fix "Keep partial transcription?" discarding the transcribed lines anyway
* Fix cancelling speech to text not stopping the rest of a batch
* Fix engine and ffmpeg processes left running after closing the speech to text window
* Improve reading of Matroska files on a network share further, now walking clusters in parallel - thx 1476523
* Update German translation - thx Need74
* Update Japanese translation - thx hisui3393

v5.2.0-beta13 (14th of August 2026)

* Add an "Edit original" mode, and make the original reference rows editable in place - thx bichitoxxx
* Add back the SE4 option to remove blank lines when opening a subtitle - thx Morv55555
* Add Ctrl+Shift+End/Home and friends for extending the selection in the subtitle grid
* Make WebVTT cue settings configurable again - thx apartmandairesi
* Make the default waveform paragraph backgrounds more visible
* Give the subtitle grid an index-mapped scroll bar so the thumb no longer jitters - thx St0rmXtr00per
* Update the speech-to-text advanced parameter help to match the engine versions being downloaded
* Fix waveform dragging not following the pointer through mid-drag scrolls - thx bichitoxxx
* Fix "Remove text for hearing impaired" reporting pasted multi-line text as changed - thx Davanix
* Fix slow reading of Matroska files on a network share - thx 1476523
* Update Japanese translation - thx hisui3393
* Update Polish translation - thx potplayer-fanpack
* Minor performance improvements in waveform scrubbing, video loading, OCR and text handling - thx ivandrofly

v5.2.0-beta12 (13th of August 2026)

* Add CrispEmbed as an engine for "OCR burned-in subtitle", with its own settings dialog - thx tal-maker
* Add Chatterbox Base in F16 and Q4_K alongside Q8_0 - thx subof
* Add select all/none/invert to the "Multiple replace" preview list - thx Davanix
* Show what each engine is in the "OCR burned-in subtitle" engine list
* Remember the numbers and formats seven more tool dialogs ask for
* Use the usual tick-all shortcuts in the "Multiple replace" rule category picker
* Make the AI review window a little wider
* Keep Google Lens OCR going when a single image fails instead of stopping the run - thx fartle
* Fix crash when closing "Text to speech" after reviewing audio - thx cvrle77
* Fix undocked video player being in front of the main window at startup - thx GrampaWildWilly
* Fix "Multiple replace" freezing on a slow regular expression rule
* Fix batch convert failing every file when one replace rule does not compile
* Fix the same original line being shown on two rows when opening a non-matching original
* Fix transparent subtitles ignoring the output folder picked in its own settings dialog
* Fix Perplexity API key, model and URL being forgotten on restart
* Fix "Apply minimum gap" mixing up frames and milliseconds
* Fix "Export plain text" saving its settings when cancelled
* Fix "OCR burned-in subtitle" repeating a line, and saving engine settings while browsing the lists
* Fix "OCR burned-in subtitle" running to the end without reporting a broken CrispEmbed/llama.cpp server
* Fix batch convert dialogs showing the main window's file name in the title bar
* Fix hardcoded English in the transparent video, burn-in and batch convert output folder pickers
* Fix Chatterbox retrying an impossible reference voice repair once per line
* Fix timers and preview images left running after closing several dialogs
* Update Japanese translation - thx hisui3393
* Update Korean translation - thx 12si27
* Update Chinese (Traditional) translation - thx love80312
* Update French translation - thx Need74
* Minor performance improvements in string handling

v5.2.0-b...

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