Break language
barriers inSlack

Real-timeJapanese↔Englishtranslation that understands context, reads images, and parses PDFs. Just invite@Honyakuto a channel. No setup required.

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# general

Features

Everything you need for seamless translation

Real-time Translation

Messages are translated instantly as they're posted. No delays, no manual triggers — just natural conversation flowing between languages.

Image Translation

Extracts and translates text from screenshots, photos, and diagrams shared in Slack using dual-engine OCR.

PDF Translation

Parses and translates PDF documents up to 30 MB while preserving paragraph structure and formatting.

Edit Re-translation

Edit a message and Honyaku automatically removes the old translation and replaces it with an updated one. Always in sync.

Auto-cleanup

Delete a message and its translation is automatically removed. No orphaned translations cluttering your channels.

Zero Configuration

Invite @Honyaku to a channel and translation starts from that moment. No setup wizards, no config files, nothing to switch on in an admin panel.

How it works

Up and running in seconds

1

Add to Slack

Install Honyaku to your workspace with one click. No credit card required.

2

Invite @Honyaku

Invite @Honyaku to any channel you want translated. Automatic translation starts from that moment.

3

Start communicating

Every message is translated in real-time. Your team just talks naturally.

Pricing

Simple, predictable pricing

Starter and Business include a hard monthly cap on usage, so there are no surprise bills.

14-day free trial · No credit card required

Starter

¥8,980/mo

For small teams getting started with cross-language communication.

  • Up to 60 seats
  • 2M characters / month
  • Text + Image translation
  • Smart language detection
  • Context-aware translations
  • Edit & delete sync
Most popular

Business

¥19,980/mo

For growing teams that need full translation coverage.

  • Up to 330 seats
  • 10M characters / month
  • Text, Image & PDF translation
  • Smart language detection
  • Context-aware translations
  • Edit & delete sync
  • Priority support

Enterprise

Custom

For organizations with custom volume and compliance needs.

  • Unlimited everything
  • All features + priority
  • Custom translation volume
  • Dedicated support
  • Custom terms & SLA
  • Security review & compliance

All prices in JPY (Japanese Yen) · Billed monthly · Excludes consumption tax · Business and Enterprise are set up under an individual contract

FAQ

Frequently asked questions

Ready to break
language barriers?

Add Honyaku to your Slack workspace and start communicating across languages in seconds.