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TutorialUpdated July 15, 202610 min read

How to add automatic subtitles to screen recordings (free)

Add AI-generated subtitles to your screen recordings for free. A step-by-step guide using YoRecord's built-in Whisper transcription - no upload, no account, no cost.

JD

Jan Drabek·Founder of YoRecord

The short answer

To add automatic subtitles to a screen recording for free, record in YoRecord, open the editor's Subtitles panel, and click Generate. Groq's Whisper API transcribes the audio in seconds and returns timestamped captions synced to your timeline - only the audio leaves the browser, never the video. Review the text, pick a style, and export with subtitles burned into the MP4.
YoRecord's editor adding AI subtitles to a recording (1 min demo)

Adding subtitles used to mean hours of manual transcription. Not anymore. Whether you are recording a product demo, a tutorial, or a quick walkthrough for your team, subtitles make your content more accessible, more engaging, and more professional. The problem has always been that creating them was tedious, expensive, or both. AI has changed that.

In this guide, you will learn how to add automatic subtitles to any screen recording for free using YoRecord, a browser-based screen recorder with built-in AI transcription powered by Groq Whisper.

Why Subtitles Matter More Than You Think

Subtitles matter because most video is watched muted, and captions also help accessibility, non-native speakers, and search indexing all at once.

85%

of Facebook videos are watched without sound

Digiday, via internal Facebook data

If your screen recording has no subtitles, most viewers scrolling through a feed will skip right past it. But silent autoplay is only one reason captions are essential:

Why it matters

  • Accessibility. Over 430 million people worldwide have disabling hearing loss (WHO) - subtitles make your content usable for deaf and hard-of-hearing viewers.
  • Noisy environments. Commuters, open-plan offices, coffee shops - viewers cannot always turn the volume up, but they can always read.
  • International audiences. Text on screen helps non-native speakers follow along, even without translation.
  • SEO and discoverability. Search engines cannot watch a video, but they can index text - subtitles give your content a searchable transcript.

In short, subtitles boost watch time, comprehension, and reach. They turn a decent recording into a professional one.

The Old Way vs. the New Way

The old way means paying a transcription service and waiting hours; the new way is clicking Generate Subtitles and waiting under two minutes, for free.

Pros

  • Record your screen in YoRecord - the audio is already captured.
  • Click "Generate Subtitles." No upload, no separate service.
  • Review the text and tweak anything the AI missed.
  • Export with subtitles burned in.
  • Total time: under 2 minutes. Cost: free.

Cons

  • Record your screen with one tool.
  • Upload to a transcription service (Rev.com charges about $1.50 per minute).
  • Wait hours or days for the transcript.
  • Import the SRT file into a video editor.
  • Manually sync, style, and re-export.
  • Total time: 30 minutes to several hours. Cost: $5 to $50+ per video.

Tools like Descript and Kapwing offer AI subtitles too, but they require accounts, uploads, and paid plans for anything beyond a short clip. YoRecord handles it for free, right in your browser. For a fuller picture of how it stacks up elsewhere, see the screen recorder comparison.

YoRecord

Try it on your next recording

Record something short, hit Generate Subtitles, and see the two-minute version for yourself.

Open the recorder

How YoRecord Auto-Generates Subtitles

YoRecord auto-generates subtitles by extracting your recording's audio in the browser and sending only that audio to Groq's Whisper API for transcription. Here is what happens behind the scenes when you click the button:

  1. The audio track from your recording is extracted in the browser.
  2. That audio is sent to Groq's Whisper model for speech-to-text transcription.
  3. Timestamped subtitle segments come back and are synced to your timeline.
  4. Subtitles appear in the editor, ready to style and export.

Privacy

Only the audio is sent to Groq's API for transcription. Your video never leaves the browser - the recording, the editing, and the final export all happen locally on your machine.

The entire process typically takes a few seconds for a short recording and under a minute even for longer videos. No file uploads, no waiting in a queue.

Step-by-Step: Add Subtitles to a Screen Recording

Adding subtitles takes six steps: record, open the editor, click Generate, review the text, pick a style, and export with captions burned in.

  1. Record your screen

    Open yorecord.com/recorder in Chrome or Edge (Firefox mostly works too). Choose whether to capture your full screen, a specific window, or a browser tab - the full recording walkthrough covers each option in more detail. Toggle your microphone on so the recording has spoken audio to transcribe. You can also enable your webcam for a picture-in-picture overlay.
  2. Open the recording in the editor

    After you stop recording, YoRecord takes you straight into its built-in editor - there is no separate upload step. Your video, audio, and webcam tracks are already loaded and ready to edit.
  3. Click "Generate Subtitles"

    In the editor's Subtitles panel, click the generate button. YoRecord extracts the audio and sends it to Groq's Whisper AI for transcription. Within seconds, timestamped captions appear on your timeline, synced to the spoken words in your recording.
  4. Review and edit the text

    AI transcription is very good, but it is not perfect. Proper nouns, brand names, acronyms, and domain-specific jargon may need a quick correction. Click any subtitle segment in the editor to fix its text - this takes a fraction of the time manual transcription would.
  5. Customize subtitle appearance

    YoRecord offers three subtitle styles: Bold White (large, high-contrast text), Caption Bar (text on a semi-transparent background), and Minimal (clean, understated). You can also set the position to top or bottom of the frame. Pick whichever combination fits your content and audience.
  6. Export your video with burned-in subtitles

    Hit export. YoRecord uses FFmpeg in the browser to render your final video with the subtitles permanently baked in. The result is a single video file that plays with captions everywhere: social media, Slack, email, or any video player - no separate SRT file needed.

Customizing Your Subtitles

YoRecord offers three subtitle styles - Bold White, Caption Bar, and Minimal - plus a choice of top or bottom placement on the frame.

Sample subtitle text

Bold White

Large white text with a subtle shadow. High contrast, easy to read over any background. Great for tutorials and product demos.

Sample subtitle text

Caption Bar

Text on a semi-transparent dark bar. The classic TV-caption look. Ideal when your screen content is bright or busy.

Sample subtitle text

Minimal

Clean, understated text that does not compete with the content. Works well for professional or corporate recordings.

Position-wise, bottom is the default and works for most content. Switch to top when the bottom of your screen has important UI elements (like a toolbar or chat input) that subtitles would cover.

Tips for Better Auto-Generated Subtitles

Better auto-generated subtitles start with clean input: a decent microphone, less background noise, clear pacing, and a quick proofread before exporting.

Get clean audio in

A USB headset or a basic condenser mic dramatically outperforms a laptop's built-in microphone - less background noise means better transcription. Close windows, mute notifications, and avoid mechanical keyboards while recording.

Speak for the transcript

You do not need to slow down unnaturally, but avoid mumbling or rushing through sentences - brief pauses between thoughts help the AI segment correctly. AI models handle everyday language well but may stumble on acronyms or niche terminology, so a quick proofread catches those.

Watch the final result

Play through the export once before sharing. A two-minute review catches anything the AI missed and confirms the timing feels natural.

When You Should Add Subtitles to Screen Recordings

The honest answer is almost always, though tutorials, product demos, social clips, training videos, and async presentations benefit the most.

  • Tutorials and how-to videos. Viewers often follow along step by step, and subtitles let them read instructions while looking at the screen.
  • Product demos and walkthroughs. Potential customers watching on LinkedIn or in a meeting room with no speakers still get the message.
  • Social media clips. Instagram Reels, TikTok, and X autoplay silently - no subtitles means no hook.
  • Internal training videos. Team members in different time zones, open offices, or with varying language proficiency all benefit from text.
  • Presentations shared asynchronously. A recorded deck with captions is self-contained - no need to be on a call to follow the narrative.
  • Bug reports and technical walkthroughs. Subtitles reinforce what the developer is pointing at on screen, which pairs well with a bug report recording.

Burned-In Subtitles vs. Subtitle Files

Burned-in subtitles are rendered directly into the video pixels and show up everywhere automatically; sidecar SRT/VTT files need a player that supports them.

Burned-in (YoRecord)Sidecar files (SRT/VTT)
How it worksRendered directly into the video pixelsA separate text file a compatible player loads alongside the video
Shows up automatically, everywhereYesNeeds player support
Reliable on Slack, email, or social mediaYesNo

For screen recordings you share on Slack, embed in a Notion doc, attach to a Jira ticket, or post on social media, burned-in subtitles are the reliable choice - they work everywhere, always.

Frequently Asked Questions

Is the AI transcription accurate?

Groq's Whisper model is one of the most accurate speech-to-text systems available. For clear English audio with low background noise, accuracy is typically above 95%. That said, it is not perfect - proper nouns, heavy accents, overlapping speakers, and domain-specific jargon may need manual correction, so always do a quick review before exporting.

What languages are supported?

Whisper supports over 50 languages, including English, Spanish, French, German, Portuguese, Japanese, Korean, and Chinese. Accuracy is highest for English and other widely spoken languages.

Does it cost anything?

No. Subtitle generation in YoRecord is free - no per-minute charge, no credit system, and no account required.

How long does subtitle generation take?

Typically a few seconds for recordings under five minutes; longer recordings may take up to a minute. Transcription happens via Groq's API, which is optimized for speed.

Can I edit the generated subtitles?

Yes. Every subtitle segment is editable in YoRecord's editor - click any caption to change its text. This is the fastest way to fix names, acronyms, or technical terms.

Is my video uploaded to a server?

No. Only the audio track is sent to Groq's Whisper API for transcription. Your video stays in the browser at all times - the recording, editing, and final export all happen locally.

Can I change the subtitle style after generating?

Yes. You can switch between the three styles (Bold White, Caption Bar, Minimal) and change the position (top or bottom) at any time before exporting - the change is instant.

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JD

Jan Drabek

Builds YoRecord, a free browser-based screen recorder that runs entirely in your tab. Writes about screen recording workflows and the browser media stack.