Get credit for everything you do.

A private work journal for your Mac

Free · macOS 26 or later · No account required

Careers are decided by what gets remembered.

Your manager remembers three weeks of your year. You remember six. Everything else — the fixes, the saves, the people you unblocked — quietly disappears, and you get rated on what's left. People call the fix a brag document. Nisshi is the one that keeps itself.

A few lines a day. That's the whole habit.

1

Log the day

A few lines about what you finished, what you called, who you unblocked. Completed tasks and meetings flow in on their own, so most days it's already half-written.

2

Nisshi compounds it

Every week becomes a recap. Real moments become STAR stories. Nothing waits for you to sit down and summarize it.

3

Walk in ready

Review, promotion, interview, 1:1 — pick a date range and the evidence is there, in your own words.

What those lines add up to

Built for review season, promotions, and interviews.

Review season

A complete self-review drafted from a year of real evidence, for any date range. You edit instead of excavate.

The promotion case

Impact with dates, outcomes, and the people who'd vouch for it — assembled from the record, not reconstructed from memory.

The interview

A library of STAR stories built from work you actually did. No more inventing answers the night before.

Every week in between

Recaps for status updates and talking points for 1:1s — your work stays visible while it's happening, not just at review time.

It doesn't just remember. It points you forward.

Nisshi reads what you log and gives it back as direction — talking points for your next 1:1, coaching when a goal stalls, the wins worth surfacing before someone else takes credit for them.

Private by design

Your journal is yours. Nisshi is local-first — no accounts, no cloud sync, nothing to sign into.

Stays on your MacEntries live in a local database. Nisshi has no backend.
On-device by defaultRuns on Apple's built-in models on your Mac — or bring your own key for Claude, OpenAI, or Gemini.
No trackingNo analytics, no ad networks, no data collection.

Questions

Can it really write my performance review?

Yes — that's the whole point. Pick any date range — half-year, year-end, a promotion window — and Nisshi drafts a complete self-review from what you actually logged, in your own words. Along the way it builds weekly recaps, STAR stories for interviews, and talking points for your next 1:1, so the evidence is ready long before anyone asks for it.

Is my journal private?

Completely. Nisshi is local-first — your entries live in a database on your Mac. There's no account, no cloud sync, no analytics, and no backend to send anything to. By default the intelligence runs on Apple's on-device models; if you bring your own Claude, OpenAI, or Gemini key, only the text you generate with is sent, under your key.

How is this different from Notes or Notion?

Notes and Notion give you a blank page; keeping it useful is your job. Nisshi does one job end-to-end: you log a line, and it produces the weekly recap, the STAR stories, and the review draft on its own. Here's an honest comparison.

What should I actually write each day?

A few honest lines: what you got done, a decision you made, someone you helped. Completed tasks and meetings flow in on their own, so most days the entry is half-written before you start. Here's what makes an entry useful later.

Does it work with Claude and other AI tools?

Yes. Nisshi ships a local MCP server, so Claude Code, Claude Desktop, and any MCP client can read your journal, search it, check your tasks, and log entries for you — all on your Mac, under your control.

What do I need to run it?

A Mac running macOS 26 or later. Nisshi is free — no account, no sign-in. On-device generation uses Apple's built-in models; you can optionally add your own AI provider key in Settings.

The work is yours.
The credit should be too.

Download on the Mac App Store Free · macOS 26 or later · No account required