English ・ 中文说明 ・ ⬇️ Download
Screenshots that never become files. Frame a region and the shot slides into a ring in the corner of your screen — drag it out when you need it, and it lands in whatever app you drop it on.
“Maybe the best screenshot tool out there” — a line of self-praise. Decide for yourself once you've used it.
| 🎯 Capture into the corner | Ctrl+Shift+S, drag a region — no save dialog, no window switching, no file hunting |
| Drop a thumbnail into WeChat / Word / Explorer / any app, release, done. Copy semantics: the ring keeps a copy | |
| 📌 Pin to screen | Click the nail at the right end of the capture toolbar — the shot is pinned where you framed it and goes into the ring |
| 📜 Scrolling capture | Frame an area — only the part that scrolls — and it stitches a long image by itself, stopping when the page ends |
| 🔍 OCR + translation | Copy text out of any screenshot, translate it in one click. Works on dark, low-contrast text |
| ↩️ Undoable | Undo the last delete (the last 8 are kept). Nothing is written outside %APPDATA% |
A single exe · portable · no installer · no registry writes (autostart optional) · no model files bundled · zero third-party dependencies.
SnapWheel is a ring of thumbnails that lives in a screen corner. Screenshots you take slide into it immediately — they stay in memory, not as files. Drag one out into any application (a chat window, a document, a folder) and it is delivered as a real image or file. Drag an image back onto the ring to keep it.
Multiple "wheels" are supported: long-press the universal key in the middle of the ring and drag towards one of four directions to create / switch / delete / go back.
- Download the full build from Releases (the zip is named
SnapWheel-v…-full.zip), unpack anywhere. - Run
SnapWheel.exe. It sits in the corner with a small pull-tab. - Press
Ctrl+Shift+S, drag a region, release. The shot lands in the ring. - Drag the thumbnail into any app to use it — or click the nail on the capture toolbar to pin it on screen instead.
On Windows 7? Download
SnapWheel-Win7-x86.zip(32-bit) orSnapWheel-Win7-x64.zipinstead of the full zip — they carry a local OCR component. Unpack it soocr\sits next toSnapWheel.exe.
Two build lines ship from the same source:
| Build | What it is |
|---|---|
SnapWheel.exe (full) |
Includes the "universal key" dial inside the ring |
SnapWheel-nokey.exe |
Same app without the universal key — for people who find the dial distracting |
| Action | How |
|---|---|
| Capture | Ctrl+Shift+S, drag; resize from the corners, rotate with the dial, confirm with double-click / Enter |
| Carry (keyboard) | Ctrl+Alt+C — lift the current thumbnail with a fake cursor, steer it with the arrow keys (Shift = faster), Space to drop it into whatever window you switched to, [ ] to switch image, C = copy only, Esc to cancel (the thumbnail flies back to the ring). Prefer the arrow keys: WASD also works but types those letters into the target window |
| Annotate | The overlay toolbar has arrow / box / mosaic / text, four colours, Ctrl+Z to undo. Annotations are baked into the image |
| OCR | The 字 button on the overlay toolbar copies the text inside your selection; the tray menu can also OCR the clipboard image |
| Zoom preview | Hold still on a thumbnail for ~0.3 s |
| Send it | Drag a thumbnail out to WeChat / a folder / anywhere |
| Keep an image | Drag it from anywhere onto the ring |
| Pin to screen | Click the nail at the right end of the capture toolbar. Or middle-click a thumbnail; scroll to zoom, drag to move, double-click / Esc to close |
| Browse | Scroll the wheel over the ring |
| Rename | Click the name pill |
| Import | Tray menu → Import images… |
| Scrolling capture | Open the capture overlay, frame the area — frame ONLY the part that scrolls — then click the long-image button. It scrolls and stitches; Enter finishes early, Esc cancels |
Latest: Windows 7 support, and you pick the OCR engine. The ring runs on Windows 7 now — those builds ship a local OCR component, because the engine built into Windows starts at Windows 10. The OCR result window also lets you switch engines: the system one is fast but drops short lines, the bundled one is slower and misses less. Plus 125% display scaling is no longer drawn as 100%, and big screenshots are no longer downscaled to 960 px before OCR.
| OS | Windows 10 / 11 — and Windows 7, via the SnapWheel-Win7-*.zip builds (the system OCR engine needs Windows 10+, so those carry their own) |
| Runtime | .NET Framework 4.x — already part of Windows, nothing to install |
| OCR language pack | Simplified Chinese / English usually ship by default; otherwise enable the "Optical character recognition" optional feature for that language |
| Size | One exe, no installer, no third-party dependencies. Settings and logs live in %APPDATA%\SnapWheel |
The whole thing is plain C# compiled with the .NET Framework compiler that ships with Windows:
$csc = "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"
# full build (with the universal key)
& $csc /nologo /optimize+ /target:winexe /win32icon:snapwheel.ico /out:SnapWheel.exe src\*.cs
# no-key build (the only difference is /define:NO_KEY)
& $csc /nologo /optimize+ /define:NO_KEY /target:winexe /win32icon:snapwheel.ico `
/out:SnapWheel-nokey.exe src\*.cstools\build.ps1 wraps the whole thing (compile both lines, run the 24 test suites, produce the release zips).
- Everything is drawn by code. The ring is an
UpdateLayeredWindowwindow painted with GDI+; buttons, rounded corners, neumorphic shading and the toolbar icons are all vector paths. There is not a single image asset in the app. - The frosted glass is hand-made (screen grab → box blur → clipped to the panel shape), because a layered window cannot use the system acrylic — and acrylic would wash a grey rectangle over the whole screen corner.
- Layered rendering with a 64-bit signature decides which cached layer to reuse, so a frame normally costs a few milliseconds.
- Sources are split by responsibility in
src\(numbered files = reading order);tests\holds the offline renderers and the behaviour tests.
MIT — see LICENSE.
截图不落地。 框完直接滑进屏幕角落的环里，要用的时候拖出去就是发出去。
截完图还要先保存、再切窗口、再去文件夹里翻出来 —— 其实你只是想把这张图粘进微信。
“Maybe the best screenshot tool out there” —— 一句自夸，你用完再判。
SnapWheel 把截图变成了顺手的一件事：Ctrl+Shift+S 框选，图不弹保存框、直接滑进屏幕角落的环里；要用的时候把缩略图拖进聊天框 / 文件夹就完事。反过来，从桌面或浏览器把图拖回环上就收着了。
绿色免安装 · 单文件 C# / WinForms · 零第三方依赖 · 一个 384 KB 的 exe，Windows 10 / 11 双击就跑；Windows 7 也能跑（下 Release 里的 Win7 包，它自带一份本地取字组件）。
框选 → 图自动滑进角落的环里 → 拖出去直接用（图还留在环上）
⬇️ 下载最新版
· 完整版（含万能键，推荐）
· 无万能键版（0.2 线，已定稿）
解压双击 SnapWheel.exe 即用，不需要安装；两个 zip 在同一个 Release 里。Windows 7 另下 SnapWheel-Win7-x86.zip（32 位）或 -x64.zip，解压后让 ocr</code> 跟 exe 并排
屏幕角落常驻的一段四分之一圆环。截图不弹保存框、不落地成文件，直接变成环上的缩略图；要用的时候从环上拖到微信、文件夹、任何地方；反过来，从桌面或浏览器把图片拖到环带上就能收进来。
支持多个「轮盘」：长按环中间的万能键往四个方向拖，可以新建 / 切换 / 删除 / 返回。
🎯 截图进角落
Ctrl+Shift+S 框一块 —— 不弹保存框、不切窗口、不用翻文件夹
↔️ 拖出去就是发出去缩略图拖进微信 / Word / 资源管理器 / 任何程序，松手就到。复制语义：环上留着一份
📌 贴到屏幕上（1.0 新增）
截图浮层工具条最右边那颗钉子：框完点它，图钉在你框的位置，同时照常进轮环
📜 滚动长截图
框一块区域，它自己滚、自己拼，翻到底自动停（只框会滚的那块 —— 边栏和悬浮窗不跟着滚，会被重复拼进去）
🔍 取字 + 翻译
圈住文字就能复制，一键翻成中文 / 英文。暗色小字也认得准；结果框里能切换取字引擎（系统自带快，随包的本地组件漏字少）
↩️ 删错了能后悔
撤销上一次删除（保留最近 8 次）。除了 %APPDATA%，不往任何地方写东西
绿色免安装 · 免注册表（开机自启可选）· 不打包任何模型文件 · 零第三方依赖。
最新版：支持 Windows 7，取字引擎自己挑。 轮盘现在 Win7 上也能跑（Win7 包自带一份本地取字组件，系统那个要 Windows 10）；取字结果框里能切「系统自带 / 随包的本地组件」。另外修掉 125% 缩放被画成 100%，大截图取字前也不再被缩到 960 像素。上一版的滚动长截图重做见下面 v1.1.0。
- 完整更新日志见 CHANGELOG.md
- 里程碑版本在 Releases 可直接下载
- 全部 47 个版本的快照（源码 + exe + 图标 + 说明）在
versions/
两条产品线同源编译：v0.3.x / v0.4.x 是完整版（含万能键），v0.2.x 是无万能键变体（/define:NO_KEY）。
MIT © 2026 exper7
