Think it.There it is.

macOS · Windows · Linux Free & open source

One search. Everything, connected.

It doesn't just find. It understands.

Tuff interprets intent, then fuses every relevant surface into one calm, living result set.

One plugin, one more trick.

Pick a few from the store. They work the moment they are in.

Models, context, and tools enter the same desktop workflow.

Tuff Intelligence brings model routing, desktop context, and Agent execution into CoreBox.

Tuff Intelligence
Ask me anything...
↵Send

Model routing Set an entry model, then route specialized scenes to the right model automatically.

Desktop context Clipboard, files, apps, and selected text become callable Agent context.

Agent tool execution Built-in tools, MCP, and plugins move requests from intent to real actions.

Instant preview widgets that respond as you type.

Calculations, conversions, and color parsing surface the moment intent is recognized.

Quick Expression
instant.expression
sqrt(16) + 2^4
20
Advanced math, instant answer.
Powered by TuffIntelligence
Currency Conversion
instant.currency
19 usd to cny
¥137.75
USD → CNY
USD19.0000 USD
CNY137.7500 CNY
Powered by TuffIntelligence
Time Conversion
instant.time
now + 2h
2 hours later
Natural language supported.
Powered by TuffIntelligence
Unit Conversion
instant.unit
12 cm to inch
4.72 in
Length, mass, temperature.
M0.12 m
FT0.3937 ft
Powered by TuffIntelligence
Color Parser
instant.color
#8B5CF6
#8B5CF6
RGB(139, 92, 246)
RGBrgb(139, 92, 246)
HSLhsl(262, 90%, 66%)
Powered by TuffIntelligence
Constant Query
instant.constant
pi * 2
6.28319
Built-in constants, ready.
Powered by TuffIntelligence

Instant feedback

Preview cards render while you type in CoreBox.

Multi-format coverage

Math, units, time, currency, and constants in one surface.

One-tap copy

Copy preview output without leaving the command bar.

Consistent formatting

Normalized values for fast reuse across apps.

One box. A lot done.

All of this ships with Tuff. No extra plugins to hunt for.

  • 01

    Open apps

    ⌥ Space

    Press ⌥Space and type two or three letters. Pinyin and abbreviations match too.

  • 02

    Find files

    report.pdf

    Everything on Windows, Spotlight plus a local index on macOS. Results show up halfway through the name.

  • 03

    Clipboard history

    clipboard-history

    Text, images, and files stay, along with the app they were copied from.

  • 04

    Translate

    fy

    Type fy to translate. fy-multi lines up Google, Bing, DeepL, and more side by side.

  • 05

    QuickOps

    ops

    Timers, pomodoro, keep-awake, port and IP checks, one command each.

  • 06

    Snippets

    snippet

    Save text, code, and prompts as snippets, and search them up when you need them.

TUFFEX DESIGN

Design, by the book.

FIG. 01Layers
01

Type

Inter · PingFang SC · weight 500

02

Color

  • primary#409eff
  • success#4ade80
  • warning#fbbf24
  • danger#f87171
  • info#909399

Brand and semantic · dark values

03

Continuous curvature

Tuffex squircles keep curvature continuous: corners ease in from the straight edge and never snap. Move across to compare.

04

Motion

0.2s / 0.3s
05

Scale

180+
Components
220+
Doc pages
3
Themes

Docs in EN and ZH · light / dark / high contrast

FAQ

You might be wondering

  1. macOS (Apple silicon and Intel), Windows (x64), and Linux all have installers. On Linux, the .deb is the one to get.

  2. Download a build marked beta from the Updates page or GitHub Releases; it stays on beta updates from then on. To go back to stable, switch in Settings → About → Update channel.

  3. On your own computer, with secrets kept in the system keychain. Signing in turns sync on by default, and what syncs, such as settings and AI setup, is encrypted on your machine before upload. Crash reports and usage stats are on by default; both can be turned off in Settings.

  4. Up to a point. Everyday automation comes from plugins and AI commands; the visual workflow builder is still in beta and not open by default.

  5. There is no importer yet. Apps and files need no moving: they show up once Tuff is installed. Text you reuse can go into the snippet library.

  6. It is free right now, and Tuff itself is open source. AI hosted by Tuff uses credits, with a free allowance every month; paid tiers may come after the stable release.