webtech360-srt-sample.srt
See how Subtitles works with this ready-made sample. Open it in the viewer or download the original SRT file for your own testing.
Open SRT files online
Subtitle files carry timed captions for video. View the cues, or pair ASS/SSA with SubtitlesOctopus for styled rendering.
Interactive viewer — This format is parsed and rendered in the browser.
Drop a SRT file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Sample files for Subtitles
Choose an extension below to open a ready-made sample in the viewer or download it for your own testing.
webtech360-demo-captions.vtt
See how Subtitles works with this ready-made sample. Open it in the viewer or download the original VTT file for your own testing.
webtech360-ass-sample.ass
See how Subtitles works with this ready-made sample. Open it in the viewer or download the original ASS file for your own testing.
You can also edit SRT online — change the content with find & replace, then save it back. Nothing is uploaded. Or turn SRT into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a SRT file?
Subtitle files carry timed captions for video. View the cues, or pair ASS/SSA with SubtitlesOctopus for styled rendering. The .SRT extension identifies a Subtitle / caption file file, which is served with the text/vtt media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open Subtitles files in desktop apps such as VLC, media players, text editors — but here all you need is a web browser.
Quick facts
| Format | Subtitles — Subtitle / caption file |
|---|---|
| File extensions | .srt .vtt .ass |
| MIME type | text/vtt |
| Developer | various |
| Category | Audio & video |
| Also opens in | VLC, media players, text editors |
How to open a SRT file online
- Click Choose file above, or drag your SRT file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render SRT in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .SRT file?
A .SRT file is a Subtitle / caption file, identified by the text/vtt media type. You can open and read it instantly in the viewer above without installing anything.
What programs open SRT files?
On the desktop, SRT files typically open in VLC, media players, text editors. Online, this page opens them in any modern browser — nothing to download.
Can I edit a SRT file online?
Yes. Open your file, switch to Edit, change the text with built-in find & replace, then click Save. It all runs in your browser — nothing is uploaded.
How do I convert SRT to an image?
Use Snapshot to capture the SRT preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my SRT file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a SRT file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.