SubtitleOne converts, synchronizes, cleans, and edits subtitle files across text and image-based formats.
Free
6 alternativesSubtitle Tools
Subtitle Tools provides online utilities for converting, syncing, cleaning, and fixing subtitle files.
About Subtitle Tools
Subtitle Tools is a website offering online utilities for converting, syncing, cleaning, and fixing subtitle files. The homepage describes its tools as free to use. Tools cover conversion to SRT, WebVTT, plain text, and PDF, timestamp shifting to match a video, removal of incorrect formatting and SDH from SRT files, and conversion of text encoding to UTF-8.
The site also includes tools for extracting embedded subtitle tracks from video files, merging two subtitle files, changing subtitle text color and screen position, and creating synchronized .lrc lyric files. Subtitle files are uploaded to the site for processing, so users who need to keep files off third-party servers should review that before use. Pricing details are not stated on the homepage.
Key features
- Converts text, SUP, and SUB/IDX subtitle files to SRT format
- Shifts all cue timestamps of a subtitle file to match a video
- Resyncs selected parts of a subtitle file with Partial Subtitle Shifter
- Removes incorrect formatting and SDH from SRT files
- Changes text encoding of text files to UTF-8
- Extracts and downloads embedded subtitle tracks from video files
Best for: People who need to convert, sync, or clean subtitle files for video without installing desktop software.
Good for
- The homepage describes the subtitle tools as free online tools
- Covers several subtitle formats, including SRT, SSA, VTT, SUP, and SUB/IDX
Watch out for
- Subtitle files are uploaded to the website for processing
- Pricing is not stated on the homepage
Subtitle Tools at a glance
- Website
- subtitletools.com
- Category
- Online Tools › Text Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Subtitle Tools FAQ
Which subtitle formats are supported?
The homepage states that the tools support all major formats, including SRT, SSA, VTT, SUP, and SUB/IDX.
Can the tools adjust subtitle timing to match a video?
The Subtitle Shifter shifts all cue timestamps in a file to match the video. The Partial Subtitle Shifter resyncs multiple specific parts of a file.
Can subtitles be extracted from a video file?
The Extract Subtitles from Video tool extracts and downloads embedded subtitle tracks from video files.
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