Rephrasely

Open-source AI writing assistant for Slack

Write better Slack messages before you send them

Rewrite rough drafts, translate ideas into natural English, and polish tone in a Slack-native workflow.

Why it helps

Clearer messages with less context switching

Rephrasely keeps editing inside Slack, so teammates can improve a message without opening another writing tool.

Clearer writing

Improve grammar, tone, and flow before a Slack message reaches your team.

Fast translation

Turn multilingual drafts into natural English while preserving the original meaning.

Open-source control

Review the code, self-host the app, and keep installation data under your control.

Workflow

From draft to polished message in three steps

The slash command opens a guided editing flow with an editable final suggestion.

1. Write a draft

Type /rephrasely followed by the message you want to improve.

2. Review the suggestion

Rephrasely opens an editable Slack modal with an AI-generated improvement.

3. Send as yourself

Edit the final text if needed, then post it with your authorized Slack user token.

Use cases

Useful for support, operations, and distributed teams

Customer-facing updates

Polish support replies, status updates, and stakeholder messages directly from Slack.

Distributed teams

Help teammates communicate clearly across languages, writing styles, and time zones.

Slash command

Try it from any Slack channel

/rephrasely Your original message here

Rephrasely FAQ

What is Rephrasely?

Rephrasely is an open-source Slack app that uses AI to suggest clearer wording for messages.

Who is Rephrasely for?

Rephrasely is useful for teams that want clearer Slack messages, better English drafts, and faster message editing.

Does Rephrasely store message content?

No. Message content is processed in memory to generate a suggestion and is not stored.

How do I use Rephrasely?

Type /rephrasely followed by your message in Slack, review the suggestion, and send it.

Can I self-host Rephrasely?

Yes. Rephrasely is open source and can be deployed with Flask, Gunicorn, and your own Slack app credentials.

AI disclaimer: Rephrasely generates suggestions with artificial intelligence. Review important information before sending.