Cut SRT, VTT, ASS, SSA, SMI, and SUB subtitles into multiple parts. Free, private, runs in your browser.
Long videos are often released in multiple segments, or you may simply want to keep the subtitles for a film or episode separate. This tool splits a subtitle file into several parts using two methods. The first method divides the file into a chosen number of roughly equal parts, balancing either the number of cues or the total on-screen duration. The second method lets you define your own time boundaries, such as 00:00:00 - 00:30:00 and 00:30:00 - end, so each part exactly matches the portion of the video you want. Every part keeps the original format, renumbers its cues from 1, and downloads instantly.
SRT and WebVTT are plain, time-based formats, so splitting preserves every timestamp exactly. Each output part is a fully valid file on its own, with cue numbers restarted at 1. For VTT the WEBVTT header and cue text are kept, so the parts load correctly in any HTML5 video player.
Advanced Sub Station Alpha (ASS), SSA, and SMI/SAMI files carry styling data alongside their timing. The splitter keeps the cue text intact, including inline style tags, so colors, fonts, and positioning inside the dialogue are preserved. The file headers are regenerated to remain valid for each format.
MicroDVD is a frame-based format that stores start and end frame numbers instead of timecodes. The splitter reads the FPS hint inside the file (defaulting to 23.976 when absent) and keeps the original frame numbers on every cue, so each part stays perfectly in sync with the matching frames of the video.
Upload many subtitle files at once, either individually or inside a .zip archive. The same split settings are applied to every file, and you can download each part separately or grab a single ZIP containing all of the resulting parts. Everything is processed on your device, so nothing is uploaded and privacy is guaranteed. If a part still needs timing correction after splitting, use sync subtitles online to shift it, or merge subtitles to rejoin parts. New to subtitle formats? Read SRT vs VTT vs ASS explained and find files to practice on in the movies library.
Upload your .srt file, choose "By number of parts", set the number of parts to 2, and click Split Subtitles. The tool divides the cues as evenly as possible and each half is downloaded as its own .srt file with cues renumbered from 1.
Yes. Choose the "By time range" method and enter boundaries such as 00:00:00 - 00:30:00 and 00:30:00 - end. Every cue that starts inside a range is placed in that range's part. Ranges can also be comma-separated on one line.
SRT, WebVTT (.vtt), ASS, SSA, SMI/SAMI, and MicroDVD (.sub). Every output part keeps the same format as the input file. You can also upload a ZIP archive containing many subtitle files to split them all at once.
No. Splitting happens entirely in your browser using JavaScript. Your subtitle files never leave your device, which makes the tool safe for unreleased or private content.
Yes. Every part renumbers its cues starting from 1. The original timings are preserved exactly for time-based formats, so each part plays perfectly in sync with the matching portion of your video.
When you split by number of parts with the "By duration" option, the tool measures the total on-screen time of every cue and places cut points so each part contains roughly the same total subtitle duration.
Each part keeps its format, so ASS/SSA styling, positions, and effect tags in the cue text are preserved. Only the header sections are regenerated, which is standard for these formats.
Yes. For MicroDVD files the original start and end frame numbers are kept on every cue, and each part is rebuilt with the correct FPS. If no FPS hint is found inside the file the tool assumes 23.976 FPS.
A part is empty when no cue starts inside its time range. The tool still lists it so you can see the partition clearly. Check your ranges against the actual subtitle timings and adjust the boundaries.
Yes. Select several files or upload a ZIP archive. Every supported file is split with the same settings, and you can download all resulting parts as a single ZIP.
Open this page in any browser, upload your .srt file, set the number of parts to 2, and click Split Subtitles. Both halves download instantly. No installation, no account, and nothing is uploaded to a server.
A good browser-based splitter handles SRT, VTT, ASS, SSA, SMI, and SUB, splits by cue count, duration, or time range, renumbers cues, keeps the original format, and supports batch ZIP. This tool does all of that with no uploads.
Pick the time boundary where part one ends (for example 00:30:00), then split with ranges "start - 00:30:00" and "00:30:00 - end". Each part is timestamped correctly for its own video segment.
Time-based formats keep their original timestamps, so sync is preserved. For MicroDVD (.sub) files, sync depends on the FPS. If your video uses a non-standard frame rate, split with the correct FPS hint present in the file.
No. Splitting a subtitle file only divides the text cues into separate files. It does not alter the video. Use it together with a video splitter, then name each subtitle part to match its video segment.
Yes. Any modern mobile browser works, including Safari, Chrome, Firefox, and Edge on iOS and Android. Files are processed on your device, so even large subtitle files split quickly.
Use this subtitle splitter when you need to divide a subtitle file by parts, cue count, duration, or time range. The workflow is browser-based and the output is downloaded to your device.
Supported input or output formats for this workflow are SRT, VTT, ASS, SSA, SMI, and MicroDVD SUB. The exact controls on the page determine which options apply.
This tool is designed for a focused subtitle workflow: divide a subtitle file by parts, cue count, duration, or time range. It reads the selected subtitle data in the browser, applies the chosen operation, and creates a downloadable result without requiring a separate desktop editor.
Start with the file type described in the tool controls and check that it belongs to the video you are working with. Keeping the original file lets you compare the result if a player interprets formatting or timing differently.
After downloading, load the output beside the matching video and verify a cue near the beginning, middle, and end. This catches format-specific timing or player-support differences before you archive the file.
The tool is intended for local browser processing. Your selected subtitle content is handled by the page and the generated file is downloaded locally; it is not presented as a server-side editing workflow.
Open this tool, select the relevant file, choose the available subtitle splitter options, and download the generated result. The page keeps the workflow in the browser rather than requiring an installed editor.
Use the formats listed in the tool description and picker. SRT, VTT, ASS, SSA, SMI, and MicroDVD SUB Formats outside that list may be rejected or need conversion first.
The tool is built for browser-side processing. Your file is selected by the browser and the result is downloaded locally rather than being described as a server upload.
No. Subtitle tools create or modify subtitle output only. The video itself is not edited, re-encoded, or downloaded by this workflow.
Open the downloaded file with a text editor or your video player. Confirm that cues are present, timestamps make sense, and the filename matches the video when automatic loading is useful.
Confirm the extension and file contents, then try a supported format such as SRT or VTT. If the file is an image subtitle or a video container, use the matching extraction or OCR tool instead.
Compatibility depends on the player and output format. SRT is a practical choice for broad device support, while WebVTT is intended for HTML5 video and browser-based players.
Yes. The workflow creates a separate download. Keeping the source is useful when you need to repeat the operation with different settings or preserve styling that an output format cannot store.