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Slack Live Captions & AI Real-Time Translation

Slack Huddles have become the go-to for quick voice check-ins, but for international teams they create a familiar problem: fast speech, mixed accents, and no transcript. Slack live captions solve this — Live Subtitles runs alongside any Huddle or call and displays real-time captions directly on your screen.

How to add live captions to Slack in 3 steps

1. Download Live Subtitles from the Microsoft Store and launch the app.
2. Select "System Audio" as the source — captures Slack audio without a microphone.
3. Start your Huddle — captions appear automatically in a floating overlay that stays on top of Slack.

Why Slack Huddles need live captions

Unlike Zoom or Teams, Slack Huddles don't offer built-in live captions or transcription. For remote teams spread across Europe, Asia, or Latin America, a 10-minute Huddle can generate 10 follow-up messages simply because someone missed a key word. AI live captions make voice as scannable as text — your team stays aligned without slowing down.

• Non-native speakers follow at their own pace without interrupting the speaker.
• Team members with hearing loss get full Huddle access without accessibility plugins.
• Fast speakers, heavy accents, and low-quality audio connections become readable.
• No admin approval or Slack app installation required — works at the OS level.

Dual subtitles for multilingual Slack calls

Live Subtitles supports dual subtitle mode: the original speech appears on the top line, your chosen translation language appears below — simultaneously. If your team speaks Spanish but the company language is English, you see both in real time. This works for Slack Huddles, Slack calls, and any Slack audio or video message you play back.

Supported: 50+ recognition languages and 50+ translation target languages including Spanish, French, German, Japanese, Chinese, Korean, Russian, Arabic, Hindi, Portuguese, Polish, Dutch, Turkish, and Ukrainian.

Works with all Slack features

Live Subtitles captures system audio, which means it works regardless of how Slack delivers sound:

• Slack Huddles (1:1 and group)
• Slack video calls
• Slack audio clips and voice messages played back
• Slack clips (short video recordings)
• Slack Connect calls with external partners

No Slack bot, no API key, no workspace admin approval. Just install, select system audio, and every Slack conversation becomes readable.

Slack captions for remote and async teams

Slack-first teams often mix synchronous Huddles with asynchronous voice clips. Live Subtitles covers both: live captions during a Huddle, and real-time captions when you replay a recorded clip. This makes your entire Slack audio layer searchable and accessible without any workflow change.

Download Live Subtitles — Free Trial

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