As of October 2026, Slack has no button that turns your speech into a regular message. The microphone in Slack's message box records an audio clip, and Slack's own dictation only works when you're writing a prompt for Slackbot. For real Slack voice to text in channels, threads and DMs, you need dictation that works outside Slack: your computer's built-in dictation, or an app like LumeVoice that types clean text wherever your cursor is.
Below: what Slack's voice features actually do, how to dictate messages on desktop and phone, and how to make spoken messages read well.
Short answer
Does Slack have voice to text?
Partly. As of October 2026, Slack can transcribe audio clips after you record them, show live captions in huddles, and take spoken prompts for Slackbot. It doesn't turn your voice into a normal channel or DM message. For that, use your computer's dictation or an app like LumeVoice, which types straight into Slack's message box.
What Slack's built-in voice features do#
Slack has three main voice features, and none of them writes a message to a person for you. Here's how each one works, going by Slack's help center as of October 2026.
Audio clips: the microphone in the message box#
On desktop, click the microphone icon in the message field, talk, click the check mark, add a note if you like, and send. On mobile, tap the plus icon and choose Record an Audio Clip. Clips can run up to five minutes and work on every Slack plan, and anyone who sees one can generate a transcript (Slack's guide to clips).
The catch: your teammate gets a recording, not a message. They have to play it or open the transcript before they know what you said, and you can't tidy up a sentence before it goes out.
Slackbot dictation#
When you're asking Slackbot something, you can click or tap the microphone icon to dictate the prompt instead of typing it. Slack says the audio isn't stored, and that dictation works in many languages but is tuned for English (How to work with Slackbot). Handy for questions to Slackbot; no help when you're writing to people.
Huddles#
Huddles are live audio and video calls. You can turn on live captions from the huddle's more-actions menu, but they're English-only and aren't saved when the huddle ends. Paid plans can also have AI take notes. Useful for the call itself, not for the message you write afterwards.
What about your computer's dictation?#
The simplest form of voice typing in Slack is the dictation built into your device, and it works in the message box for free. On a Mac, turn on Dictation in System Settings > Keyboard > Dictation, then press the Microphone key or your Dictation shortcut. On Windows 10 or 11, press Win + H (it needs an internet connection). On a phone, tap the microphone on your keyboard. These tools can add basic punctuation, but they type what they hear, so false starts and "wait, no" corrections end up in the message. Our guide to dictation on Mac covers Apple's version in detail.
How to dictate Slack messages on Mac and Windows#
LumeVoice lives in the menu bar on a Mac and in the system tray on Windows, and types into whatever text field has your cursor. That includes the Slack desktop app and Slack in any browser, with nothing to install inside Slack.
- Download LumeVoice for Mac or Windows and sign in.
- Click into the message box of a channel or DM, or click Reply in thread.
- Hold the key and talk. It's fn (Globe) on a Mac and Ctrl + Win on Windows. A small pill above your Dock or taskbar shows a waveform while you speak.
- Let go. The cleaned-up text appears in the message box, and the pill shows a check mark.
- Read it and press Enter. LumeVoice never sends anything for you.
For a long update, double-press the key to switch to hands-free mode, talk as long as you need, and press once to finish. If you clicked away before letting go, the pill shows your words with a Copy button, and you can paste your last dictation again from the pill or the menu.
How to use speech to text in Slack on your phone#
- iPhone: switch to the Lume keyboard in the Slack app and talk. It works anywhere you can type. See LumeVoice for iPhone.
- Android: tap the floating bubble that sits over your keyboard and talk. You keep your usual keyboard for everything else. See LumeVoice for Android.
Either way, the text lands in the message box and you decide when to send it.
Talk your next Slack thread instead of typing it
Hold a key, say the reply the way you'd say it to a colleague, and LumeVoice types it into Slack with the "ums" gone and the punctuation in place. Free to start, no card needed.
Tips for dictating Slack messages that read well#
Speaking a Slack message is easy. Speaking a good one takes a little practice. These habits help:
- Lead with the point. Say the answer or the ask first, then the reason. In a busy channel, the first line is often the only one people read.
- Say lists out loud. For a standup, try "Three updates: one, the API migration is done; two, the billing fix is in review; three, I'm blocked on design." LumeVoice turns spoken lists into numbered or bulleted lists that are easy to scan.
- Correct yourself as you go. Say "let's ship Tuesday, actually Wednesday" and only "Let's ship Wednesday" lands in Slack.
- Teach it your team's words. Add teammates' names, product names and acronyms to your custom dictionary so they're spelled right the first time.
- Match the room. On desktop, writing styles such as Casual or Casual Lowercase suit chatty channels, and Default reads better in announcements. The iPhone keyboard has Casual and Work styles for the same job.
- Save what you repeat. A snippet types your calendar link, the release checklist URL or a standard handoff note from a short spoken cue.
- Finish with the keyboard. Dictate the sentences, then type the @ and pick the person from Slack's list, add an emoji, or wrap code in backticks. Spotted a typo after sending? Press the up arrow in an empty message box to edit your last message.
For more workflows, from brain dumps to quick replies, see how to write Slack messages faster with your voice.
Slack's built-in options vs LumeVoice#
Here's how the options compare, as of October 2026:
| Slack audio clip | Slackbot dictation | Mac or Windows dictation | LumeVoice | |
|---|---|---|---|---|
| What gets posted | A recording, with an optional transcript | A prompt to Slackbot | Text, as heard | Cleaned-up text |
| Works for messages to people | Yes, as audio | No | Yes | Yes |
| What it does to your words | Nothing: it's your voice | Transcribes them into a prompt | Can add punctuation | Removes fillers, applies self-corrections, formats lists |
| Works outside Slack | No | No | Yes | Yes, on Mac, Windows, iPhone and Android |
| Cost | Included in every Slack plan | Depends on your Slack plan | Free, built in | 3,000 free words, no card required; paid plans $14.99/mo, $79.99/yr, or $249 lifetime |
| Your audio | Kept like any other Slack file | Not stored, says Slack | Apple can process it on your device; Windows uses an online service | Not stored after processing |
Swipe to see all columns
When Slack's built-in options are enough#
LumeVoice isn't the right tool for every Slack moment:
- When your voice is the point. A hello to a new teammate, or a walkthrough where tone matters, works well as a clip.
- When you're asking Slackbot. Its own microphone is right there, and Slack says the audio isn't stored.
- When you send a few short messages a day. Apple Dictation or Win + H costs nothing. On iPhone, Apple's dictation runs on the device in many languages and works without a connection; LumeVoice always needs one.
- When the room is listening. In an open office, typing is more private than talking.
LumeVoice earns its place when you write a lot: long thread replies, project updates, handoffs, and the same kind of writing in Microsoft Teams and Gmail. One key works in all of them.
The short version#
Slack's microphone is for recordings, not messages. To dictate a Slack message, click into the box, hold your key, say it the way you'd say it out loud, read it once and press Enter. Your audio is processed in the cloud and isn't stored afterwards, nothing you say is used to train models, and your dictation history stays on your device.