Subtitle tools are sold as one category and are really four. Some are browser video editors that happen to caption well. Some are caption specialists built for short-form social video. Some are transcription services where a subtitle file is one export option. And one model pairs AI with human review for work that has to clear a compliance standard.
Which you need depends less on accuracy claims than on three practical questions: what your free tier actually restricts, whether you need a subtitle file or captions burned into the video, and whether you need translation. This guide covers seven tools on those terms, using vendor documentation. Where a vendor does not publish a figure consistently, that is stated rather than guessed.
Four kinds of tool
Browser video editors such as VEED and Kapwing generate captions inside a full editing timeline. You get styling, trimming and export in one place, at the cost of watermarks and resolution caps on free plans.
Caption specialists such as Submagic and CapCut are built around short-form video: animated word-by-word captions, emoji, highlighting. They do one job for one format.
Transcription platforms such as Happy Scribe and Maestra start from the transcript. Subtitles are an export, alongside DOCX and PDF, and their strength is language coverage and file-format flexibility rather than video styling.
Human-in-the-loop services such as Rev add professional review on top of AI output. Slower and considerably more expensive, and the right answer when captions must meet a legal or broadcast standard.
Burned-in captions or a subtitle file?
This decision determines which tool suits you, and it is worth making before you compare features.
Burned-in captions are rendered permanently into the video pixels. They always display, they cannot be switched off, and they cannot be edited later without re-exporting. This is what short-form social video generally requires, because styled captions are part of the visual language of the format.
Sidecar subtitle files, usually SRT or VTT, sit alongside the video. Viewers can turn them off, platforms can index them, and you can translate or correct them without touching the video. YouTube, Vimeo and most accessibility workflows want these. If the same video will be reused across platforms or translated later, a file is the flexible choice.
A related format worth knowing is SDH, subtitles for the deaf and hard of hearing, which includes non-speech audio cues such as sound effects and music alongside dialogue. Not every tool produces it; Happy Scribe documents support for it.
Some tools do only one of these. Caption specialists burn in. Transcription platforms produce files. The browser editors do both, which is why they suit people publishing to several places.
How free tiers are actually limited
Free plans in this category rarely limit features. They limit output, in four ways that are easy to miss:
- Watermarks on exported video, which is the most common gate.
- Resolution caps, frequently 720p, regardless of your source footage.
- Metered subtitle minutes per month, separate from video length limits.
- Translation paywalls. Automatic caption translation is commonly excluded from free plans entirely, even where subtitling is included.
The minutes distinction catches people out. A tool may allow a 10-minute video but meter auto-subtitling separately, so a long upload consumes the monthly allowance in one go.
Browser video editors
1. VEED.io
VEED is the most widely used browser editor with a strong captioning workflow: auto-subtitles, styling, translation, and export as either a burned-in video or a subtitle file. Language coverage is broad, with over 100 languages reported.
Its free plan carries a VEED watermark, caps export at 720p, limits video length to around 10 minutes, and meters auto-subtitle minutes separately. Automatic caption translation is not available on the free plan at all, which matters if multilingual output is the reason you are looking.
On pricing, be careful. VEED has renamed and restructured its tiers repeatedly, and current sources describe the lineup variously as Free/Basic/Pro/Business, Free/Lite/Pro, and Free/Creator/Pro/Studio/Enterprise. Reported entry prices range from roughly $12 to $24 per month depending on tier and billing cadence, and the free subtitle allowance is reported as anywhere from 2 to 30 minutes a month. This guide will not pick from that range. Check VEED’s own pricing page for the current structure.
2. Kapwing
Kapwing is the collaboration-oriented alternative, built around real-time team editing with caption templates tuned for vertical video. Translation coverage is reported at 70 or more languages.
Its free plan watermarks exports, caps resolution at 720p and limits video length to roughly seven minutes, with auto-subtitling capped below that on longer files. One documented quirk: the watermark can reportedly be removed by sharing a link to the Kapwing project page once, which is a lower barrier than a straight paywall. Paid plans are commonly reported from around $16 per month.
Caption specialists for short-form
3. CapCut
CapCut is the default for TikTok, Reels and Shorts, and the practical reason is that it is free, runs on mobile and desktop, and produces the animated caption styles that short-form audiences expect. Auto-captions, styling and export are all included without a subscription.
Its limitation is scope. It is a short-form video editor first, so language coverage and subtitle-file export are weaker than the transcription platforms, and it is not the tool for a 40-minute interview.
4. Submagic
Submagic does one thing: styled captions for short vertical video, with word-by-word highlighting, emoji and automatic emphasis. For creators producing clips at volume, that focus is the appeal.
It offers a free tier limited by monthly exports rather than by features. Submagic does not publish its limits and pricing in a way this guide could verify consistently, so check current terms at signup.
Transcription platforms
5. Happy Scribe
Happy Scribe approaches this from transcription rather than video, and its export flexibility is the strongest here. Its own pricing page advertises support for over 150 languages, and it exports to SRT, VTT, DOCX, PDF, TXT and MP4. It supports SDH, and includes an interactive editor with timestamps and speaker identification.
The structure worth understanding: Happy Scribe combines subscription minute allowances with pay-as-you-go top-ups, and its documentation states that AI services consume your subscription credits while human services are charged separately per minute. Human transcription and subtitling are add-ons, widely reported around $2 per minute, which is at the higher end of the market.
A free entry tier exists with a small allowance, commonly reported at around 10 AI minutes. Paid tiers are reported at roughly $17, $29 and $89 per month with substantially lower annual rates, but figures differ between sources and currencies, so confirm on the vendor page.
6. Maestra
Maestra covers transcription, subtitles, translation and AI dubbing across a reported 125-plus languages, with live captioning integrations for streaming platforms including YouTube, OBS and Zoom. If your work is multilingual, this is the broadest offer here.
Two caveats. First, Maestra splits pricing across separate plans for transcription, subtitles, voiceover and real-time services, which makes forecasting a monthly total harder than a single subscription. Pay-as-you-go is reported from around $12 for 60 non-expiring credits, with module subscriptions reported from around $23 per month. Second, voice cloning is available in roughly 30 of those 125-plus languages, not across the full set, so do not assume dubbing coverage matches subtitle coverage.
Human review
7. Rev
Rev is the option for captions that have to be right rather than fast: AI transcription with optional professional human review, aimed at broadcast, legal and accessibility-compliance work.
It has no free plan, though a small allowance of free automatic transcription minutes is commonly reported for new accounts. AI transcription is priced per minute, reported around $0.25, and human services considerably higher, reported between roughly $1.50 and $2 per minute. Language coverage is narrower than the transcription platforms above, reported around 37 languages.
The economics only make sense at low volume or high stakes. For routine social video it is the wrong tool; for a compliance deliverable it may be the only appropriate one.
Comparison
Based on vendor documentation and current reporting at the time of writing. Where a vendor does not publish a figure consistently, the table says so.
| Tool | Type | Free tier limit | Subtitle file export | Translation | Platform |
|---|---|---|---|---|---|
| VEED.io | Browser editor | Watermark, 720p, ~10 min, metered minutes | Yes, plus burned-in | Paid plans only | Browser |
| Kapwing | Browser editor | Watermark, 720p, ~7 min | Yes, plus burned-in | Yes, 70+ languages | Browser |
| CapCut | Short-form editor | Free to use | Limited | Limited | Mobile, desktop |
| Submagic | Caption specialist | Monthly export cap, not published | Burned-in focus | Available on paid | Browser |
| Happy Scribe | Transcription | ~10 AI minutes, reported | SRT, VTT, plus SDH | Yes, 150+ languages | Browser |
| Maestra | Transcription + dubbing | Trial and free live captions | Yes | Yes, 125+ languages | Browser |
| Rev | AI + human review | No free plan | Yes | Narrower coverage | Browser |
Deliberately absent is an accuracy score. Vendors publish accuracy percentages measured on their own material under undisclosed conditions, and those figures do not predict performance on your audio, your accents or your terminology.
Accessibility and compliance
If captions are being added for accessibility rather than engagement, the requirements are different and stricter.
Accessibility standards generally expect captions to convey more than dialogue: speaker identification, and relevant non-speech audio such as sound effects and music. That is what SDH provides, and it is why a plain auto-generated transcript is not automatically an accessible caption track.
Where captions must satisfy a legal, educational or broadcast obligation, automatic output alone is generally not sufficient without review. That is the case for human-in-the-loop services, and it is worth budgeting for rather than discovering late. Requirements vary by country, sector and platform, so this is general information rather than legal advice.
How to evaluate subtitle results before publishing
A feature list is useful, but the final choice should be based on a short test with your own footage. Upload a clip that includes the kind of speech you publish most often: a fast-paced tutorial, an interview with more than one speaker, a product demo, or a short social video. That makes it easier to judge whether a tool fits your workflow instead of choosing it from a comparison table alone.
Check the transcript, not only the captions
Read the transcript from start to finish and pay close attention to names, product terms, numbers, acronyms, and words that sound alike. Caption quality is not only about getting the right words; it is also about placing line breaks where viewers can read them comfortably. Plan time for a final proofread before you publish, especially when the topic includes technical language or several speakers.
Match the export to the place you publish
Decide in advance whether you need captions burned into the video, a separate subtitle file, or both. A separate file is useful when the same video will be reused on several platforms or translated later. For short-form clips, preview the captions on a phone as well as on a desktop screen so that style, timing and placement remain readable.
Choose by workflow
- Short social videos: prioritise a fast review process, readable caption styling, and an export that fits your publishing routine.
- Interviews and podcasts: focus on speaker labels, editing controls, and a simple way to correct longer transcripts.
- Multilingual videos: test one target language before committing to a larger project and have a fluent reviewer check the final wording.
- Client or team work: confirm who can review, edit and approve captions before the video is exported.
Free plans are a practical way to run this comparison, but review the current limits and export terms on each provider’s own site before deciding. The best option is the one that gives you clear, editable captions for the type of video you actually publish.
How to choose
You publish short vertical video: CapCut costs nothing and produces the expected styles; Submagic if styling speed at volume matters more.
You need editing and captions together: a browser editor, budgeting for a paid plan since free tiers watermark and cap resolution.
You need translated subtitles: a transcription platform. Note that translation is commonly excluded from free tiers elsewhere.
You need SDH or accessibility compliance: a platform that documents SDH support, with human review where the obligation is legal.
You work in many languages: compare language counts directly, and check whether dubbing coverage matches subtitle coverage, because it often does not.
For translating the subtitle text itself rather than generating it, our guide to AI translation tools covers dedicated options.
Related guides
- Best AI Video Generators in 2026
- Best AI Voice Generators in 2026
- Best AI Translation Tools in 2026
- Best AI Note Taking Apps in 2026
- Best AI Voice Cloning Tools in 2026
Frequently asked questions
Which subtitle generators are free?
CapCut is free to use. VEED, Kapwing and Submagic have free tiers limited by watermarks, resolution and monthly minutes. Happy Scribe offers a small free allowance. Rev has no free plan.
Can I get a subtitle file rather than captions burned into the video?
Yes, from the browser editors and the transcription platforms, typically as SRT or VTT. Caption specialists focus on burned-in output. Choose based on whether viewers should be able to switch captions off.
Is subtitle translation included on free plans?
Frequently not. VEED documents that automatic caption translation is unavailable on its free plan, and translation is commonly a paid feature elsewhere even when subtitling is free.
How accurate are AI subtitles?
Vendors publish accuracy figures measured on their own material under conditions they do not disclose, so those numbers do not predict results on your audio. Accuracy drops with background noise, overlapping speakers, accents and technical terminology. Test with your own footage.
What is SDH and do I need it?
SDH means subtitles for the deaf and hard of hearing, which include non-speech audio cues and speaker identification alongside dialogue. If captions are for accessibility rather than engagement, that additional information is usually expected.
Conclusion
Decide first what kind of tool you need. Short-form creators want a caption specialist and can pay nothing. People editing and publishing in one place want a browser editor and should expect to pay, because free tiers watermark. Multilingual work belongs on a transcription platform, where language coverage and file exports are the strengths. Compliance work needs human review.
Two things to check before subscribing: whether translation is included on the plan you are considering, and whether your free tier meters subtitle minutes separately from video length. Those two details cause more unexpected upgrades in this category than any feature gap.
