UtilEngine UtilEngine

Everything. One keystroke away.

A launcher extension for your browser. Chat with AI, save windows as sessions, search your tabs, run the numbers, and 50+ more. All behind one shortcut.

Get it for $49
Start typing...
Suggestions
  • Chat with AIAICOMMAND
  • Search YoutubeBOOKMARK
  • Convert To PNGImage ConverterCOMMAND
  • URL Encode / DecodeURLCOMMAND
  • Create SessionSessionsCOMMAND
Open
⏎

Save hours every week

Skip the tab-hopping. Commands run inline.

Buy once, use forever

No subscriptions. No hidden fees.

New tools monthly

All future updates included, no extra charge.

Stays in your browser

Your data is yours. We only verify your license.

How it works

⌥+Z

Everything you need,
one shortcut away

⌥ + Z

Shortcuts

Every tool, any page. Alt+Z by default, change it anytime.

Video Poster
Calculator
Type math in the search bar. Functions, constants, history, all inline.

Calculator

Type math in the search bar. Functions, constants, history, all inline.

Video Poster
Chat with AI
Full chat with any model, on any tab.

Chat with AI

Full chat with any model, on any tab.

Video Poster
AI Commands
Reusable prompts with dynamic variables, and a different model for each one.

AI Commands

Reusable prompts with dynamic variables, and a different model for each one.

Video Poster
Ask AI
Type a question. Hit Tab. Skip the chat UI.

Ask AI

Type a question. Hit Tab. Skip the chat UI.

Video Poster
Bookmarks
Save sites with placeholders. Launch them by name from any page.

Bookmarks

Save sites with placeholders. Launch them by name from any page.

Video Poster
History
Find any visited page. Type a keyword or paste a URL.

History

Find any visited page. Type a keyword or paste a URL.

Video Poster
Downloads
Find any past download. Open it again in one click.

Downloads

Find any past download. Open it again in one click.

Video Poster
Tabs
Fuzzy-search any open tab across windows.

Tabs

Fuzzy-search any open tab across windows.

Video Poster
Currency Converter
35 currencies, live rates. Type 100 USD to EUR in the search bar.

Currency Converter

35 currencies, live rates. Type 100 USD to EUR in the search bar.

Video Poster
Sessions
Save any window as a session. Restore it anywhere, anytime.

Sessions

Save any window as a session. Restore it anywhere, anytime.

50+

TOOLS & COMMANDS

Tools & Commands

Text, code, images, JSON, URLs, and more.

Never lose a window

Save any window as a session. Close it, reopen it tomorrow, or on another machine.

Q3 Redesign5 tabsLive
Figma - Q3 Redesign
Competitor teardown
Pricing research
Analytics
Launch checklist
Snapshots run on their own, every hour
Snapshot timeline
12:0013:00Now

Bring your own AI

One OpenRouter key for 60+ models. Pay providers directly, with no markup from us.

Claude Sonnet 5
Ask anything...

Chat with AI

Streaming chat with any model, switchable mid-conversation. Web search included.

AI Commands6 built in
Prompt

Fix the spelling and grammar of: {selection}

AI Commands

Six built-in commands, or write your own using anything on the page.

62 modelsOne key. No markup.
OpenAIGPT-5.5 ProGPT-5.5GPT-5.4GPT-5.3 Codex
AnthropicClaude Sonnet 5Claude Fable 5Claude Opus 4.8Claude Haiku 4.5
GoogleGemini 3.5 FlashGemini 3.1 ProGemini 3 Pro
MoonshotAIKimi K2.7 CodeKimi K2.6Kimi K2 Thinking
xAIGrok 4.5Grok 4.3Grok 4.20
Z.AIGLM 5.2GLM 5.1GLM 5 Turbo
OpenAIGPT-5.5 ProGPT-5.5GPT-5.4GPT-5.3 Codex
AnthropicClaude Sonnet 5Claude Fable 5Claude Opus 4.8Claude Haiku 4.5
GoogleGemini 3.5 FlashGemini 3.1 ProGemini 3 Pro
MoonshotAIKimi K2.7 CodeKimi K2.6Kimi K2 Thinking
xAIGrok 4.5Grok 4.3Grok 4.20
Z.AIGLM 5.2GLM 5.1GLM 5 Turbo

One profile, every browser

Your sessions, bookmarks, and AI commands follow you. Chrome, Brave, Edge, any device.

Chrome · PersonalSynced
Q3 Redesign
GitHub Issues
Translate To
Fix Spelling and Grammar
Brave · WorkSynced
Q3 Redesign
GitHub Issues
Translate To
Fix Spelling and Grammar
SessionsBookmarksAI CommandsSettings· SoonCalculator History· Soon

Your favorite productivity tools, all at one place

HTML

HTML

Preview, beautify or sanitize HTML code.

  • HTML Preview

  • HTML Sanitizer

  • HTML Beautifier

Image Converter

Image Converter

Convert images to different formats effortlessly.

  • Convert To PNG

  • Convert To JPEG

  • Convert To WEBP

JSON

JSON

Parse JSON, convert it to YAML, CSV or vice versa.

  • JSON Parser

  • JSON to CSV

  • JSON to YAML

  • YAML to JSON

  • CSV to JSON

Text

Text

Inspect text to extract information, find diff, convert case, and more.

  • Text Case Converter

  • Text Diff

  • Text Inspector

  • Lorem Ipsum

  • Random String

  • Backslash Escape/Unescape

URL

URL

Extract information from URLs. Encode, Decode or Parse URLs.

  • URL Encode / Decode

  • URL Parser

Base64

Base64

Encode content to Base64 or decode Base64 to content.

  • Base64 String Encode/Decode

One payment, yours forever

Every tool, every AI command, every future update included.

Lifetime Access

Everything UtilEngine does, today and every future update.

Every tool and command
Use on 3 browsers at once
Free updates, forever
Works on Chrome, Brave, and Edge
$49USD

One-time payment. VAT included.

Get lifetime access
14-day refund. No questions asked.

Frequently Asked Questions

You have questions, we have answers!

Do you offer a trial version?

No trial, but you get 14 days to refund. No questions asked.

Can I activate my license key on my work and home computer?

Yes. One key works in 3 browsers at the same time. Manage activations from your Dashboard.

What browsers are supported by UtilEngine?

UtilEngine works on Chrome, Brave, Edge, and other Chromium browsers. Firefox support is on the roadmap.

Do you collect my data?

No. We verify your license once on activation, and store your name and email. Nothing else leaves your browser. Nothing is shared with anyone.

What AI models are supported?

62 models from OpenAI, Anthropic, Google, xAI, MoonshotAI, and Z.AI. Pick a different model for each AI command.

Do I need to pay for AI features separately?

AI features need a free OpenRouter API key. You pay OpenRouter directly for usage. We take no markup.

Does it work on all websites?

Yes. UtilEngine uses Shadow DOM isolation, so it never interferes with page styles. On restricted pages like chrome:// URLs, it opens in a standalone tab.