Explain better. Reply faster.

UnderKey helps freelance developers send clear, client-friendly updates — in the right tone and language every time.

(no credit card required)

Technical updates don’t have to sound like code dumps

Most clients aren’t developers. But your updates still need to be accurate. UnderKey helps you simplify without dumbing down — and adapt your tone per client.

Client-friendly tone settings

Set language level and tone for each client — formal, casual, beginner-friendly, or technical.

Simplify without losing meaning

Translate technical details into plain language that makes sense to non-developers.

Faster, consistent replies

Send structured, polished messages without rewriting the same explanation every time.

Smart notes, smarter replies

Add reminders like 'avoid jargon' or 'always suggest next steps'. UnderKey takes care of the rest.

A day in the life of a freelance developer

From code reviews to client updates — here’s how UnderKey helps you communicate clearly without wasting time.

🕒 10:15am

📩 Email from Laura (agency PM)

Laura isn’t technical, so her profile is set to ‘neutral tone, simplified English’. UnderKey rewrites your GitHub update into something she actually understands.

🕒 1:30pm

🔧 Bug update for Hugo (tech cofounder)

Hugo prefers short, precise Slack messages. UnderKey skips the fluff and makes your update sound like a pro wrote it — because one did.

🕒 6:10pm

🧠 Feature clarification for Sofia (startup founder)

You’re tired, but Sofia expects updates to be friendly and proactive. Her profile includes ‘always offer a suggestion’. UnderKey remembers that — and delivers.

Client chat simulation

See how UnderKey helps you keep Laura updated — in plain, structured English that feels clear and confident.

Conversation

Hey! Any update on the login issue from yesterday?

09:58 AM

Hi Laura! The problem was related to the session token handling logic. I’ve addressed it and deployed the fix — it should be working fine now. Let me know if you spot anything else.

10:00 AM

Notes

Yes, the issue was with the session token logic. I fixed it and deployed a patch.

Thanks! Can we move to the payment bug next?

10:03 AM

Sure! I’ll start looking into the payment issue this afternoon and aim to have it fixed by end of day.

10:04 AM

Notes

Tell her I’ll start this afternoon and aim to finish by EOD.

Perfect. Just ping me if anything’s unclear.

10:06 AM

Generated

Sounds good! I’ll send a quick summary once I’ve identified the issue and let you know the fix timeline.

10:07 AM

Rules

She’s not technical. Avoid jargon. Keep it structured. Use simple, polite English.

Smart notes

Avoid code-specific terms

Add technical details at the end

Always include next step

Speak your client's language — not just yours

UnderKey makes your updates clear, fast, and professional — no matter who’s on the other side.

Start using UnderKey

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