UtiliStudio Docs

A quick guide to using UtiliStudio.

Finding a tool

Use the search bar on the home screen or press Ctrl+K (or ⌘K on Mac) to open the command palette. Type any part of a tool name or category to find it.

Using categories

Browse tools by category from the home screen when you are exploring available functionality.

Favorites

Pin frequently used tools for quicker access. Pinned tools appear in the favorites section on the home screen.

Recent tools

Recently used tools appear on the home screen so you can return to them without searching.

Working with tools

Tools provide interfaces suited to their specific task. Review results before using them in important workflows.

Available tools & utilities

Explore guides, capabilities, and interactive workspace links for every canonical tool in UtiliStudio:

JSON Formatter — Beautify, minify and validate JSON with syntax highlighting.
REST Client — Send HTTP requests, inspect responses and test APIs without leaving UtiliStudio.
UUID Generator — Generate cryptographically secure UUIDs (v4) with bulk creation, customization, and export options.
Markdown Preview — Live Markdown editor and preview with real-time rendering, word count, and HTML export.
Markup Viewer — Inspect, format, and visualize structured markup and HTML documents.
Focus Timer — Customizable Pomodoro and focus timer with visual intervals and productivity tracking.
Data Workspace — Comprehensive tabular data workspace for inspecting, transforming, and filtering datasets.
Developer Utilities — Essential developer helpers including hash generators, base64 encoders, and regex testers.
JSONPath Tester — Evaluate and test JSONPath expressions against complex JSON structures in real time.
Diff Viewer — Side-by-side visual difference comparison for text, code, and structured data.
JSON Schema Validator — Validate JSON payloads against JSON Schema standards with detailed error feedback.
YAML/JSON Converter — Convert data bidirectionally between YAML and formatted JSON with syntax validation.
JSON/CSV Converter — Convert tabular JSON to CSV and vice versa with custom delimiters and column mapping.
SEO Utilities — Audit meta tags, preview search engine snippets, and analyze page metadata.

REST Client: Local, VPN & CORS-Restricted APIs (Browser Extension)

By default, the UtiliStudio REST Client sends requests directly from your browser so that APIs reachable from your machine or corporate VPN work immediately. However, standard web browsers block direct requests when a target API:

Rejects automatic browser CORS preflight (OPTIONS) requests triggered by custom headers (such as Authorization or custom API headers), or
Runs on localhost, a private network, or an internal VPN hostname over http:// without returning Access-Control-Allow-Origin headers.

To test these APIs on desktop browsers without modifying backend server settings, install the UtiliStudio Local & CORS Network Bridge extension:

Download utilistudio-extension.zip and extract it to a folder on your computer.
Open your browser's Extensions page (chrome://extensions, edge://extensions, or brave://extensions).
Enable Developer mode (toggle in the top-right corner).
Click Load unpacked and select the extracted folder containing manifest.json, then refresh UtiliStudio.

Once installed, whenever a direct browser request is blocked by CORS or Mixed Content, UtiliStudio automatically relays the request locally through the extension on your machine—keeping 100% of your traffic inside your local/VPN network.

Keyboard shortcuts

Ctrl+K / ⌘K — Open command palette
Escape — Close dialogs and overlays
Arrow keys — Navigate command palette results
Enter — Open selected tool

Theme

Use the theme toggle in the header to switch between dark and light mode. Your preference is saved locally in your browser.

Privacy & Security

Many tools process information locally in your browser, but behavior may vary by tool. See the Privacy Policy and Security pages for details on local processing and the optional Browser Extension.

Feedback

Use our Feedback & Support page or the feedback button within the application to report problems or suggest improvements.

For technical questions or documentation clarifications, contact support@utilistudio.com.