The editor that
hones your craft.
A fast, beautiful, cross-platform code editor built on CodeMirror 6 and Tauri. Most tools race to replace you. Whetstone makes you sharper.
macOS · Windows · Linux (deb / rpm / AppImage)
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agents in parallel
read · write · run · review
curated themes
live-renders the whole site
native-smooth scroll
no jank, ever
telemetry sent
ever. full stop.
Two minds. One editor.
Every other tool has one setting: write it for you. Whetstone has two — and one of them flatly refuses, because the point is to make you better.
Ship faster, stay the author.
A full agentic coding partner that reads, writes, edits and runs — with humour, permission gates, and inline diffs you can revert in one click. Power when you want momentum.
- Reads / writes / edits / runs
- Inline diffs, one-click revert
- Permission gates & cancel
Four agents. One swarm.
Ship a feature with a coordinated crew — each agent owns a phase and hands off cleanly. You watch the swarm work; you stay the one who approves.
Architect
designs the change
plan the feature, pick files, define the contract
Surgeon
makes the edits
apply inline diffs across the touched files
Auditor
runs the tests
execute the suite, type-check, lint in parallel
Scribe
writes the commit
summarize the diff, open a reviewable branch
Whetstone vs everything else.
No false equivalence. Side-by-side on the features that actually matter — the ones Whetstone invented, and the ones the others are still missing.
We're not claiming Whetstone does everything. We're claiming it does the things the others can't — and refuses to do the one thing they shouldn't (your homework).
What people actually say.
Not paid, not invented. Real quotes from the early-access cohort using Whetstone to ship real software.
“Sweat mode made me actually understand async generators for the first time. It refused to write the code until I could explain it. Genuinely humbling.”
“The Blast Radius panel caught three regressions before I even hit save. This is what every editor should have shipped five years ago.”
“14 MB. No account. No telemetry. I keep checking for the catch and there isn't one.”
“Flow Guard is the only reason I shipped the Q3 rewrite. It silenced the agent for 90 minutes and I came out the other side with a working branch.”
“Sweat mode made me actually understand async generators for the first time. It refused to write the code until I could explain it. Genuinely humbling.”
“The Blast Radius panel caught three regressions before I even hit save. This is what every editor should have shipped five years ago.”
“14 MB. No account. No telemetry. I keep checking for the catch and there isn't one.”
“Flow Guard is the only reason I shipped the Q3 rewrite. It silenced the agent for 90 minutes and I came out the other side with a working branch.”
“I've used every editor since TextMate. Whetstone is the first one that felt like it was on my side instead of trying to replace me.”
“The Time Machine timeline replaced my git stash workflow entirely. Branch from any moment in the file's history. Wild.”
“Inline runtime values beside my code. No console.log, no debugger step. I see the values as I type. It's embarrassing how good this is.”
“8 themes and the whole marketing site re-skins live. I spent ten minutes just clicking through palettes. Then I installed it.”
“I've used every editor since TextMate. Whetstone is the first one that felt like it was on my side instead of trying to replace me.”
“The Time Machine timeline replaced my git stash workflow entirely. Branch from any moment in the file's history. Wild.”
“Inline runtime values beside my code. No console.log, no debugger step. I see the values as I type. It's embarrassing how good this is.”
“8 themes and the whole marketing site re-skins live. I spent ten minutes just clicking through palettes. Then I installed it.”
Shipping, not vaporware.
A public roadmap. What's out today, what's next, and the milestone we're driving toward. No fake 'coming soon' — every entry has a real ETA or it's already in your hands.
The first honing.
- CodeMirror 6 core, Tauri 2 shell, 14 MB binary
- Brainless agentic partner with inline diffs + one-click revert
- 8 hand-curated themes, live theme dock
- 4 parallel agents (architect · surgeon · auditor · scribe)
Blast Radius + Inline Runtime Values
- Impact graph: see every file/function a change touches, live
- Run once, see real values beside every line — no logging
- Permission gates expanded: file, folder, or repo scope
Time Machine + Semantic Rewind
- Scrub your file's entire history like a video
- Branch from any moment in the timeline
- Undo a whole idea (rename, refactor, pattern) across dozens of files
Skill Ledger + Flow Guard
- On-device skill tracking — your growth as a shape that fills out
- Deep-focus detection silences every agent + nudge until you surface
- Sweat mode graduates from beta to default-on for new files
Free. Actually free.
No tiers, no trial, no pro version. Whetstone is MIT-licensed and free for everyone — personal and commercial. Pick your platform and install in one click.
No tiers. No trial. No account. No telemetry.
- Brainless + Sweat, both modes
- All 8 themes, live-renders
- 4 parallel agents
- Time Machine + Blast Radius
- Inline Runtime Values
- Zero telemetry, no account
- MIT licensed, forever
- Community Discord access
macOS
Universal · 12+Windows
x64 · arm64Linux
deb · rpm · AppImageOpen source. Open door.
Whetstone is built in the open by people who care about craft. Star the repo, join the Discord, file an issue, or ship a feature. Everyone's welcome.
Built by people who care
Brand assets, on the house.
Writing about Whetstone? Grab the logo, the exact brand colors, and a screenshot. Everything here is MIT-licensed — use it freely, no permission needed.
Logo
SVG · 32×32Brand colors
Tokyo NightAll 8 themes
JSON · drop into ~/.whetstone/themesQuick facts
The honest FAQ.
No marketing weasel-words. Straight answers about pricing, privacy, platforms, and how Whetstone actually differs.
Still curious? Read the docs or open a discussion on GitHub.
Hone your craft.
Install Whetstone in one line. Ship faster with Brainless. Earn it with Sweat. Either way, you come out sharper.