Snap. Reply. In 3 seconds.
From a single screenshot to a polished reply for Slack, email, or LINE — in 3 seconds, on macOS.
No sign-up · ready right after install
No credit card · macOS 13+
Hi — following up on the quote from the other day. Could you get back to me by end of day?
Hi Sato, thanks for following up. I’ll send the updated quote by end of day — appreciate your patience.
Screenshot to reply, in a real 3 seconds.
Just scroll — and watch Henji walk from an incoming message to a ready-to-send reply.
- 1ScreenshotAim a capture at the incoming message
- 2On-device OCRText is read locally — the image never leaves
- 3Reply draftsTwo or three drafts in different tones
- 4CopyPick one, copy, paste, and send
Hi — following up on the quote from the other day. Could you get back to me by end of day?
Hi Sato, thanks for following up. I’ll send the updated quote by end of day — appreciate your patience.
Got it — I’ll send it over by end of day.
Everything you need for daily replies.
Screenshot, then a reply in 3 seconds
Aim a capture at the incoming message. OCR, summary, and reply drafting happen automatically.
Can we move tomorrow’s standup to 3pm? Please also share the final deck.
Sure — I’ll move tomorrow’s standup to 3pm, and share the final deck by end of day.
Auto-format for Slack, email, LINE
Tone, length, and line breaks adapt to the chat tool you are replying in — same intent, formatted to fit.
Think the deck will be ready today?
Yep — I’ll share it by this evening!
Would it be possible to share the materials by end of day?
Thank you for reaching out. I’ll share the materials again by this evening.
Custom agents for "Customer" or "Boss" voices
Save your own prompts as agents. Same incoming message — switch the agent and the tone changes instantly.
The bug I mentioned the other day still doesn’t seem fixed…
I’m sorry for the trouble. I’ll confirm the cause and report back on the status by end of day.
Heads up — the bug isn’t resolved yet. I’ll dig into the cause and report back by EOD.
Launch with ⌘+Shift+S
No need to open a browser. Trigger Henji from any app, anytime.
Summon it instantly, from on top of any app
Are you free this weekend?
Saturday works for me! What time were you thinking?
If you can screenshot it, it works.
No per-app integration to set up. If the text is on your screen, Henji can draft a reply — whatever app it’s in.
The desktop guarantees web-based AI tools cannot give you.
Your screenshots and chats never leave your device the way they would in a browser. Native means privacy and speed at the same time.
On-device OCR keeps screenshots local
Captures are processed by macOS Vision OCR on your machine. The image itself is never uploaded.
Your inputs are never used for AI training
The LLM provider has training opt-out enabled. Henji itself does not persist your message bodies on our servers.
History stays on your device
Reply history is stored locally so you can re-use past responses without uploading anything to the cloud.
Simple pricing that earns its keep.
Frequently asked questions
Stop spending every day chasing replies.
No credit card · macOS 13+