Sound professional
in every Slack channel.
BetterSend adds an AI Improve button directly into Slack Web. Rewrite your message with the right tone — professional, concise, confident, or diplomatic — before you hit send.
Works on app.slack.com · Free forever · No credit card
Rewriting the same Slack message three times?
You draft a message to your team, delete it, and start over — unsure if it sounds rude, too casual, or just non-native. Your standups, async updates, and DMs all happen in English, even if it isn't your first language. BetterSend rewrites your draft in one click, right in the Slack composer.
See the difference instantly
One click transforms your message — without changing your meaning.
Before
“hey just checking if someone looked at the thing i sent last week about the deployment”
After
Professional“Hi — just following up on the deployment question I sent last week. Could you let me know if it's been reviewed? Happy to jump on a call if helpful.”
13 tones for every Slack situation
From diplomatic to direct, concise to warm — choose the tone that fits the conversation.
Translate Slack messages in 44 languages
Write to international teammates in their language — right inside Slack Web.
Original (EN)
“Hey, could you check if the issue is resolved on your end? Let me know if you need anything from me.”
“"Ei, poderia dar uma olhada nesse problema quando tiver um momento? Acho que precisamos conversar antes de avançar."”
Write in your language. Send in theirs.
Mix Portuguese, Spanish, French — whatever comes naturally. BetterSend turns it into one polished message in the language you need.
You typed
Mixedoi team, vamos cooperate on the new release pq the deadline is tight e preciso review antes de friday
BetterSend sends
Hey team — let's team up on the new release. The deadline is tight, so I'll need to review it before Friday.
Set "Write in" to English (or any of 44 languages) once. Every Improve uses it.
How BetterSend compares
Other tools translate text. BetterSend rewrites it like a native speaker would — inside the app you're already in.
| Feature | BetterSend $1.99/mo | Grammarly $12/mo | DeepL Write $8.74/mo | ChatGPT $20/mo |
|---|---|---|---|---|
| Works inside Slack, Gmail, WhatsApp — no copy-paste | ||||
| Mixed-language input (write in PT, send in EN) | ||||
| 13 tones (Professional, Diplomatic, Confident…) | ||||
| One-click translation in the conversation | ||||
| Never stores your messages | ||||
| Less than $1.25/month on the annual plan |
Comparison reflects publicly documented features as of 2026. Trademarks belong to their respective owners.
Privacy-First by Design
BetterSend only runs when you click Improve or Translate. Your messages are never stored, auto-scanned, or sent anywhere without your explicit action.
Only runs when you click — never in the background
Messages are processed and never stored
No tracking, no scanning, no passive reading of your conversations
Frequently asked questions
Write better on Slack starting today
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