SubAlign Subtitle GuidesFree online subtitle tools to sync, convert, retime, repair and clean up SRT, VTT and ASS files, right in your browser. No upload, no sign-up, no cost.https://subalign.com/enHow to watch with dual language subtitleshttps://subalign.com/guides/dual-language-subtitles/https://subalign.com/guides/dual-language-subtitles/Two subtitle languages on screen at once. Which players can do it natively, how to merge two files into one, and what works on streaming sites.Mon, 06 Jul 2026 00:00:00 GMTSubtitles, closed captions and SDH comparedhttps://subalign.com/guides/subtitles-vs-captions-vs-sdh/https://subalign.com/guides/subtitles-vs-captions-vs-sdh/Three terms that get used interchangeably but mean different things, and how to turn one kind into another when you have the wrong one.Mon, 06 Jul 2026 00:00:00 GMTHow to extract subtitles from MKV and MP4 fileshttps://subalign.com/guides/extract-subtitles-from-mkv-mp4/https://subalign.com/guides/extract-subtitles-from-mkv-mp4/Get the subtitle track out of a video container as its own SRT file, including the bitmap-subtitle catch nobody warns you about.Mon, 06 Jul 2026 00:00:00 GMTHow to translate subtitles into another languagehttps://subalign.com/guides/how-to-translate-subtitles/https://subalign.com/guides/how-to-translate-subtitles/A practical workflow for translating a subtitle file into another language while keeping its timing, plus the encoding, sync and reading-speed gotchas to watch for.Thu, 25 Jun 2026 00:00:00 GMTWhat is an SRT file? How to open, create and edit onehttps://subalign.com/guides/what-is-an-srt-file/https://subalign.com/guides/what-is-an-srt-file/A complete plain-English guide to the SRT subtitle format. What it stores, how to open and edit it, and how to play it with any video.Thu, 25 Jun 2026 00:00:00 GMTGarbled subtitle characters, explained and fixedhttps://subalign.com/guides/fix-garbled-subtitle-characters/https://subalign.com/guides/fix-garbled-subtitle-characters/What causes mojibake, why it is an encoding mismatch rather than corruption, and how to recover the original text.Sun, 14 Jun 2026 00:00:00 GMTSubtitle frame rates and the 23.976 vs 25 fps problemhttps://subalign.com/guides/subtitle-frame-rate-guide/https://subalign.com/guides/subtitle-frame-rate-guide/Why a frame-rate mismatch makes subtitles drift, where 23.976 and 25 fps come from, and how rescaling fixes it.Sun, 14 Jun 2026 00:00:00 GMTSubtitle reading speed, and how fast is too fasthttps://subalign.com/guides/subtitle-reading-speed-cps/https://subalign.com/guides/subtitle-reading-speed-cps/What CPS means, the limits the major broadcasters use, and how to spot captions that move too fast to read.Sun, 14 Jun 2026 00:00:00 GMTHow to add subtitles to any videohttps://subalign.com/guides/how-to-add-subtitles-to-any-video/https://subalign.com/guides/how-to-add-subtitles-to-any-video/The file-naming trick that auto-loads subtitles, the difference between soft and hard subs, and how to load them in the main players.Sun, 14 Jun 2026 00:00:00 GMTSRT, VTT and ASS subtitle formats explainedhttps://subalign.com/guides/subtitle-formats-explained/https://subalign.com/guides/subtitle-formats-explained/What SRT, WebVTT and ASS/SSA actually store, how they differ, and which one to reach for in each situation.Sun, 14 Jun 2026 00:00:00 GMTWhy subtitles go out of sync, and how to fix themhttps://subalign.com/guides/why-subtitles-out-of-sync/https://subalign.com/guides/why-subtitles-out-of-sync/Diagnose the two kinds of sync problem, a constant offset versus gradual drift, and learn the right fix for each.Sun, 14 Jun 2026 00:00:00 GMT