Best AI Tools for Teachers to Add Captions and Transcripts to Class Videos (2026)

Last updated: October 2026. Features and prices are taken from each vendor’s official pages and help centers and may change.

Quick answer: for most teachers, the easiest way to caption class videos is to use the tool you already have. YouTube auto captions work for videos you publish there, Microsoft Teams and Stream caption recorded lessons in a Microsoft school, and Google Meet adds live captions to virtual classes. When you need accurate captions you can edit, translate for families or burn into the video file, use a dedicated captioning tool such as BlaBlaScribe, Kapwing or VEED. Canva is the simplest free option for K-12 teachers who already design lessons there.

Captions are no longer only an accessibility extra. According to the World Health Organization, about 430 million people worldwide live with disabling hearing loss, including 34 million children. In US public schools, 10.6% of students, about 5.3 million, were English learners in fall 2021, according to the National Center for Education Statistics. And a review of more than 100 studies by psychologist Morton Ann Gernsbacher, published as Video Captions Benefit Everyone (2015), found that captions improve comprehension, attention and memory, especially for non-native speakers, early readers and students who are deaf or hard of hearing.

Below we compare nine tools teachers can use to add subtitles to video lessons, transcribe recordings and share text versions with students and parents.

Caption and transcript tools for teachers: comparison table

1. YouTube automatic captions: best for videos you already publish on YouTube

YouTube automatically captions uploaded videos and Shorts in about 70 languages. Teachers can correct the text in YouTube Studio under Subtitles, which creates an edited copy of the track, and download the caption file. Live streams are captioned in English only.

Limitations: accuracy drops with accents, background noise and overlapping voices, and YouTube may not generate captions at all for very long videos, poor audio or videos that mix languages. Always review captions before assigning a video.

2. Microsoft Teams and Stream: best for schools on Microsoft 365

Teams shows live captions in 57 spoken languages during class meetings, and organizers can download the meeting transcript as a DOCX or VTT file. For recorded lessons stored in Stream, the video owner can generate a transcript and captions in 28 languages, edit them and re-upload a corrected VTT file.

Limitations: translated captions require Teams Premium or Copilot, and Stream transcripts work for videos under 4 GB and 4 hours.

3. Google Meet and Google Slides: best for live captions in Google classrooms

Google Meet offers live captions to all users in many languages, most of them in beta. Google Slides can show live captions while you present in Chrome, Edge or Safari, which helps students follow a lecture in real time. Meet transcripts, saved to the organizer’s Google Drive, are available in Teaching and Learning Upgrade and Education Plus editions.

Limitations: Slides captions have no punctuation, are not saved and switch off after 30 minutes of inactivity, so they do not replace captions on a recorded video.

4. BlaBlaScribe: best for accurate captions, translation and burned-in subtitles

BlaBlaScribe turns a lesson video, audio file or YouTube link into an editable transcript with speaker labels and timestamps in 120+ languages. Teachers can fix any line, then export SRT or VTT caption files, or burn styled subtitles directly into an MP4 so captions appear on any screen or LMS without extra settings. Captions can be translated into other languages, which helps English learners and lets schools share lesson recordings with families who speak another language at home. Paid plans also create AI summaries, useful as lesson notes or review sheets.

Pricing: the free Starter plan includes 30 minutes on sign-up with no credit card and exports SRT and TXT. Creator costs $11 per month billed annually ($14 monthly) with 600 minutes per month and all export formats.

Limitations: on the free plan, files longer than 10 minutes are transcribed only partially, and video export is limited to the first 90 seconds with a watermark.

5. Canva: best free option for K-12 teachers

Canva for Education is free for K-12 teachers, their students and qualifying districts, with verification by school email or proof of employment. Its video editor can generate captions automatically and detects the spoken language, which suits short explainer videos and class announcements built in Canva.

Limitations: higher education is not covered by the free program, and Canva’s help pages do not state SRT or VTT export.

6. Otter.ai: best for transcribing lectures and meetings

Otter.ai records and transcribes lectures, staff meetings and parent conferences and produces searchable notes. The free plan includes 300 minutes per month, but each conversation is limited to 30 minutes and only 3 files can be imported in total. Pro costs $8.33 per month billed annually ($16.99 monthly), and educators with a .edu email get 20% off.

Limitations: Otter supports 6 languages and is built for transcripts rather than video captions; SRT export requires a paid plan.

7. Kapwing: best for styled captions on short videos

Kapwing is a browser-based video editor with automatic subtitles, caption styling and translation into more than 60 languages, and it lets you download SRT or VTT files. The free plan exports videos up to 4 minutes with a watermark and includes 10 minutes of auto-subtitles per month. Pro costs $16 per month with 1,000 subtitle minutes.

8. Descript: best for editing lesson videos by text

Descript lets you edit a recorded lesson by editing its transcript: delete a sentence from the text and it disappears from the video. It transcribes 25 languages. The free plan includes 60 media minutes per month with watermarked 720p exports, and Hobbyist starts at $16 per month. Students and educators can apply for an education discount.

9. VEED: best for department-wide video work

VEED combines an online video editor with automatic subtitles and translation into more than 50 languages, and subtitles can be downloaded as SRT, VTT or TXT. Free exports carry a watermark, and VEED offers custom education plans for faculty-wide use through its sales team.

How to choose a captioning tool for your classroom

• You publish lessons on YouTube: start with YouTube auto captions and correct them in YouTube Studio.
• Your school runs on Microsoft 365 or Google Workspace: use Teams and Stream or Meet captions for live and recorded classes.
• You need accurate, editable captions for an LMS, or subtitles burned into the video: BlaBlaScribe, Kapwing or VEED.
• You support English learners or multilingual families: choose a tool that translates captions, such as BlaBlaScribe or Kapwing.
• You need searchable notes from lectures and meetings: Otter.ai or Microsoft Teams transcripts.
• You teach K-12 and design materials in Canva: Canva for Education is free.

Five tips for better classroom captions

1. Record clean audio. A clip-on or USB microphone improves automatic captions more than any software setting.
2. Always review before sharing. Automatic captions still make mistakes, especially with names, subject terms and accents.
3. Keep lines short. Two lines of up to about 42 characters are easier to read than long blocks of text.
4. Share the transcript too. A text version helps students review, search and translate the lesson.
5. Caption pre-recorded videos you assign, not only your own lessons, so every student can follow along.

Frequently asked questions

What is the easiest way for teachers to add captions to a video?

If the video is on YouTube, turn on automatic captions and correct them in YouTube Studio. For a video file you share in an LMS or show offline, upload it to a captioning tool such as BlaBlaScribe, Kapwing or VEED and export SRT captions or a video with subtitles burned in.

Are automatic captions accurate enough for students with hearing loss?

They are a good starting point, but they are not perfect. Research reviewed by Gernsbacher notes that automated captions still contain errors, so teachers should review and correct them, especially for students who rely on captions to follow the lesson.

Can I translate class video captions for English learners or parents?

Yes. Microsoft Teams offers translated captions with Teams Premium or Copilot, Google Meet offers them on selected editions, and tools like BlaBlaScribe and Kapwing translate caption files into other languages that you can attach to the video.

What is the difference between an SRT file and burned-in subtitles?

An SRT or VTT file is a separate caption track that viewers can turn on or off and that platforms can read. Burned-in subtitles are part of the video image, so they always show, which is useful when you share a file on a platform that does not support caption tracks.

Are there free captioning tools for teachers?

Yes. YouTube auto captions, Google Meet live captions and Google Slides captions are free, Canva for Education is free for K-12 teachers, and Otter.ai, Kapwing, Descript and BlaBlaScribe offer free plans with limits.

Conclusion

Captioning class videos takes minutes today, and it helps far more students than those who request it. Start with the captions built into YouTube, Teams or Google, then add a dedicated tool when you need accurate captions you can edit, translate or burn into the video. Review every caption track before you share it, and your lessons will be easier to follow for students with hearing loss, English learners and everyone who studies with the sound off.