Alternatives to Subtitle Composer
An open-source KDE editor for text-based subtitles with a waveform view and video preview. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Subtitle Composer
An open-source KDE editor for text-based subtitles with a waveform view and video preview.
Replacements
Listings that take over the same core job as Subtitle Composer.
Subtitle Edit
Creates, retimes, translates and fixes subtitles, with a waveform so you can see where the speech is.
Subtitle Edit adds a macOS build and supports over two hundred formats, with speech recognition, translation and OCR for image-based subtitles alongside its waveform view.
Aegisub
A free, open-source cross-platform editor for creating, timing and styling subtitles.
Aegisub runs on Windows, macOS and Linux under a BSD license and focuses on precise timing and detailed styling, though its interface takes time to learn.
Jubler
An open-source subtitle editor for creating, editing, timing and converting text-based subtitles.
Jubler is AGPL-3.0 licensed for Windows, macOS and Linux, supporting more than 20 formats with a waveform, quality validation and command-line batch tools.
Gaupol
An open-source editor for creating, editing and translating text-based subtitle files.
Gaupol is an open-source text subtitle editor aimed mainly at Linux desktops, with translation tools and the aeidon library, but it has no Windows build listed.
Similar software
Related functionality, not a direct replacement.
MKVToolNix
Builds, inspects and edits MKV files: add subtitles, drop a track, fix chapters, all without re-encoding.
FileBot
A tool that renames and organizes movie, TV and anime files and fetches subtitles and artwork.
HandBrake
A video converter that turns files and unprotected discs into MP4, MKV or WebM with presets for common devices.
Kdenlive
KDE’s free video editor, with a multi-track timeline, proxy editing and a large effect set.