Is this SRT editor free?

Yes. The subtitle editor on this page is completely free with no account required. Open a file, edit the text and timing, and download — nothing is gated.

Does this subtitle editor upload my file?

No. Everything happens locally in your browser. Your subtitle text never leaves your device, which makes it safe for client and confidential work.

Can I edit subtitle timing as well as the text?

Yes. Edit the start and end timecode of any cue, add or delete cues, and use Shift all to move every cue earlier or later by a set number of seconds to fix sync.

What formats can I open and export?

Open standard SRT (.srt) or WebVTT (.vtt) files. Export a clean SRT or VTT when you are done. The editor preserves your cue timing.

What does the 'cps' warning mean?

CPS is characters per second — a reading-speed measure. The editor flags cues above about 20 CPS because they are usually too fast to read comfortably (Netflix targets ~17 CPS for adults). It also flags cues that overlap the next one.

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Check it out!

SRT & Subtitle Editor

Edit subtitle text and timing in your browser, then export a clean SRT or VTT. Files stay on your device.

Upload an SRT or VTT file (or start from scratch below)

Drag and drop a .srt or .vtt file, or click to upload

Max file size: 2 MB

0 cues

Upload a subtitle file above, or click Add cue to start a new one.

Free Online Subtitle Editor

Edit SRT and VTT subtitles without installing anything

Most subtitle edits are small — a wrong word, a late cue, an overlap. This editor lets you fix them in the browser instead of opening heavyweight desktop software. Open your SRT or VTT, edit the text and timecodes, and export a clean file. Nothing is uploaded; your subtitles stay on your device.

Local browser editingEdit text + timingReading-speed warningsExport SRT or VTT

Why edit in the browser

No install, no account, and no upload. Open the file, make your change, and download — it takes seconds.

The reading-speed and overlap warnings help you catch subtitles that are too fast or collide before you publish.

Works with the rest of the toolkit: generate, convert, translate, and resync without leaving the browser.

How To Edit Subtitles Online

A simple subtitle editing workflow

Step 1

Open your subtitle file

Drag in a .srt or .vtt file, or click Add cue to start a new subtitle file from scratch.

Step 2

Edit text and timing

Fix typos, rewrite lines, adjust the start and end timecodes, and add or delete cues. Use Shift all to resync the whole file at once.

Step 3

Check reading speed and overlaps

Each cue shows its reading speed (CPS). The editor highlights subtitles that are too fast or overlap the next cue so you can fix readability before export.

Step 4

Download a clean SRT or VTT

Export your edited subtitles as SRT or WebVTT, ready for Premiere Pro, YouTube, DaVinci Resolve, or any web player.

Best Use Cases

When you need a quick subtitle editor

Clean up auto-generated captions

AI and platform auto-captions are fast but rarely perfect. Fix the wrong words, punctuation, and line breaks before you publish.

Retime and resync subtitles

If subtitles drift out of sync, nudge individual cues or shift the whole file by a fixed offset until everything lines up with the audio.

Quick edits without desktop software

Skip installing Subtitle Edit or Aegisub for a small change. Open the file, make the edit, and export — all in the browser.

FAQ

Frequently asked questions about the SRT editor

Need To Create Captions, Not Just Edit Them?

Caption X handles full caption workflows - try for free

Generate accurate, styled captions in 100+ languages directly inside Adobe Premiere Pro, then fine-tune them anywhere.

Generate, don't retype

Auto-generate captions from your audio instead of editing line by line.

Built for real delivery

100+ languages, styled captions, export to SRT or burn-in.

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View all download options

More caption tools and supporting pages

SRT Timing AdjusterShift every subtitle cue earlier or later by a fixed offset to fix sync issues fast.SRT MergerCombine multiple SRT files into one continuous subtitle track.SRT To VTTConvert your edited SRT into WebVTT for HTML5 players and web platforms.VTT To SRTConvert WebVTT caption files into SRT for editors and platform uploads.Subtitle TranslatorTranslate your edited subtitles into another language while keeping the timing.Free Subtitle GeneratorGenerate a fresh SRT from audio or video, then fine-tune it in this editor.Compare Caption ToolsSee how Caption X stacks up against other captioning and subtitle workflows.

Easily create captions in Adobe Premiere ProOpen Caption X and generate synced captions for your Adobe Premiere Pro workflow.