Best Subtitle Editors (2026): 11 Tools Compared

Automatic captions get you most of the way, but rarely all of it. Names come out wrong, lines run too long, and the timing drifts just enough to annoy anyone watching with the sound off. A subtitle editor is where you fix all of that before the video goes out.

The eleven subtitle editors below are listed alphabetically and in no particular order, and every description comes from the tool's own website, read this week. If you're starting with automatic captions, my roundup of free AI subtitle generators covers the first draft stage.

Subtitle editors at a glance

I checked the free plan column on each tool's own website, as of Oct 2026. Yes means the site names a free plan, a free version, a free allowance or an open source version. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to start for free, so check the vendor's page before you sign up.

Tool	Type	Good for	Free plan
Aegisub	Open source subtitle editor	Timing and styling subtitles	Yes
Amara	Subtitle editor plus human services	Teams who may need translators too	Not stated
EZTitles	Professional subtitling and captioning software	Localisation teams delivering at scale	Trial only
Gaupol	Text-based subtitle editor for Linux	Translating and correcting subtitles on Linux	Yes
Jubler	Free and open source subtitle editor	Converting between subtitle formats	Yes
Kapwing	Online video editor with a subtitler	Captions inside a browser video editor	Not stated
Subtitle Composer	Open source subtitle editor from KDE	Basic and advanced editing on the desktop	Yes
Subtitle Edit	Free, open source subtitle editor	Fixing subtitles that are out of sync	Yes
Subtitle Horse	Browser-based captions editor	Subtitling online without installing anything	Yes
Subtitle Workshop	Free Windows subtitle application	A classic free editor for subtitle files	Yes
VEED	Online video editor with a subtitle tool	Editing, syncing and styling subtitles online	Yes

Eleven subtitle editors to compare

Aegisub

Best for: Video editors and fan subtitlers who want a free, open source editor for timing subtitles to audio, with a built-in real-time video preview.

Amara

Best for: Organisations that want an online subtitle editor alongside human subtitling, captioning and translation services for the jobs that get too big.

EZTitles

Best for: Professional subtitlers and localisation teams who need software used by individual editors and global studios delivering subtitle files every week.

Gaupol

Best for: Linux users who want an editor for creating and translating subtitles, timing them to video and correcting common errors in the file.

Jubler

Best for: Editors who need to author, edit and convert text-based subtitles in a free and open source program kept going by donations.

Kapwing

Best for: Social video creators who want to add captions and subtitles in the browser, inside the same editor they use to cut their clips.

Subtitle Composer

Best for: Desktop users who want an open source, text-based subtitle editor from the KDE community that handles both basic and advanced editing jobs.

Subtitle Edit

Best for: Anyone with a subtitle file that's drifted out of sync with the video, who wants a free, open source editor with several ways to fix it.

Subtitle Horse

Best for: Freelancers and small teams who want a browser-based captions editor, with a free version that works without registration.

Subtitle Workshop

Best for: Windows users who want a long-standing free application for creating, editing and converting text-based subtitle files.

VEED

Best for: Marketers and creators who want to edit, sync and style subtitles online, then burn them into the video in one place.

Which subtitle editor suits your work

• Fixing a file that's out of sync: Subtitle Edit.
• Timing and styling with a video preview: Aegisub.
• Linux desktops: Gaupol or Subtitle Composer.
• Converting between subtitle formats: Jubler or Subtitle Workshop.
• Editing captions inside a video editor: Kapwing or VEED.
• Working in the browser without signing up: Subtitle Horse.
• Professional localisation at volume: EZTitles.
• Handing big jobs to human subtitlers: Amara.

How long a subtitle line should be

The BBC Subtitle Guidelines recommend a maximum of two lines for widescreen, 4:3 or square video, and three lines for vertical 9:16 video, unless you're confident nothing important in the picture will be covered. They also note that Teletext, still used for subtitles on some broadcast platforms, limits a line to 37 fixed-width characters.

You don't need to work to broadcast rules for a social video, but they're a sensible benchmark. Short lines are easier to read, and they leave more of the picture visible, which matters on a phone where the subtitles can take up a large share of the screen.

Desktop subtitle programs versus online editors

Desktop programs are usually free, work offline and handle many subtitle formats. They suit editors and translators who work with separate subtitle files, such as SRT files supplied to a platform or a client.

Online editors sit inside a video tool, so you can edit captions and burn them into the video in one place. They suit marketers making social clips, where the subtitles are part of the finished video rather than a separate file.

Questions to ask before you choose a subtitle editor

1. Do I need a separate subtitle file, or captions burned into the video?
2. Which subtitle formats do my platforms accept?
3. Can it show the video and the waveform while I edit?
4. Will I translate subtitles into other languages?
5. Does it flag lines that are too long or too fast?
6. Can more than one person work on the same file?

Signs your subtitles need another pass

• Names and brand words come out wrong. Correct them by hand.
• Lines cover faces or on-screen text. Shorten or move them.
• Words appear before anyone speaks. Fix the timing.
• Viewers can't keep up. Split long subtitles in two.

Do you make a subtitle or caption editor? Tool makers can ask to be considered for a featured place on this list.

My plain advice on choosing a subtitle editor

Decide first whether you need a subtitle file or captions baked into the video, because that single choice points you at a desktop program or an online editor. Then check the editor shows the video while you work, as timing by ear alone is slow and error prone.

Read every subtitle through once with the sound off before you publish, as that's how much of your audience will watch. For the YouTube side of things, my guide on adding subtitles to a YouTube video walks through the upload.

Frequently asked questions

What is a subtitle editor?

A subtitle editor is a program for writing, timing and correcting subtitles so they match the speech in a video and display at a readable pace.

Are subtitle editors free?

Several are free and open source, and others offer free plans or trials. The free plan column above shows what each tool's own site says.

How do I fix subtitles that are out of sync?

Open the file in a subtitle editor and shift or stretch the timings until they match the speech. Some editors offer several ways to resync a whole file at once.

How many lines should a subtitle have?

The BBC recommends a maximum of two lines for widescreen or square video and three for vertical video.

What's the difference between subtitles and captions?

Subtitles usually cover speech, often in another language. Captions also describe sounds for viewers who are deaf or hard of hearing.

Can I edit automatic captions?

Yes. Most people generate a first draft automatically, then correct names, line breaks and timing in an editor.