Subtitle Edit is a free, portable editor for video subtitles.

Subtitle Edit might be free, but as subtitle editors go, it could pass as a professional program. Because of the length of a possible full review, we'd suggest you check our list of features, our screenshot below, or even try it first online.

Subtitle Edit Features:

● Create/adjust/sync/translate subtitle lines
● Convert between SubRip, MicroDVD, Advanced SubStation Alpha, Sub Station Alpha, D-Cinema, SAMI, youtube sbv, and many more (280+ different formats!)
● Cool audio visualizer control - can display waveform and or spectrogram
● Video player uses DirectShow, VLC media player, or MPlayer
● Visually sync/adjust a subtitle (start/end position and speed)
● 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 Open Office dictionaries/NHunspell (many dictionaries available)
● Remove text for hearing impaired (HI)
● Renumbering
● Swedish to Danish translation built-in (via Multi Translator Online)
● 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