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Kept Tools

Everyday tools. Your content stays with you.

Format JSON, generate passwords and QR codes, or transform text directly in your browser.

Featured tools

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Security

Password Generator

Create configurable random passwords in your browser with clear length, character-set, reveal, copy, and strength-estimate controls.

Codes

QR Code Generator

Create downloadable QR codes from text, URLs, Wi-Fi, vCards, email, SMS, and phone details with preview, copy, and export controls.

Text

Text Converter

Convert rich text into HTML, Markdown, and JSON in your browser with sanitized preview, copy actions, downloads, and clear document stats.

Text

JSON Formatter

Format and validate JSON locally in your browser with 2- or 4-space indentation while keeping unsafe integers and duplicate members intact.

Images

Image Compressor

Compress images locally in your browser for maximum privacy. Reduce file size and change formats to WebP, JPEG, or PNG without uploading to a server.

Images

Color Format Converter

Convert colors between HEX, RGB, RGBA, and HSL formats easily. A fast, local color code converter designed for modern web developers and designers.

AI Agent Security Scanner

Scan AI agent instructions and supported .md, .mdc, .json, and .yaml configuration files locally in your browser.

One place for everyday browser tools

Kept Tools brings generators, converters, formatters, and image utilities into one searchable catalog. Open a featured tool or search for the task you need, enter your content, and use the available copy or download action to take the result with you. Each tool has its own page with usage guidance, so you can bookmark a specific task and return to it directly.

Questions about Kept Tools

Which tasks can I do here?
Generate passwords, UUIDs, or QR codes; format JSON, XML, YAML, HTML, and CSS; convert text and colors; compare text; or compress images. The catalog links to each tool with a description, so you can choose the right utility before entering your content.
Are the tools free, and do I need an account?
The tools are free to use without creating an account. Choose a tool and start working in your browser. You can keep favorites and recent-tool shortcuts on this device; those preferences store tool identifiers and timestamps rather than the content you process.
Does my content leave the browser?
Tool inputs and generated outputs are processed locally in your browser rather than sent to application servers or third-party APIs. Loading the website still involves normal HTTP requests: the hosting provider may receive your IP address, requested page, headers, and timestamps. Browser extensions and anything you do with copied or downloaded results are outside this boundary.
What does the AI Security Scanner check?
It applies local static rules to pasted AI instructions and supported agent configuration files. It does not run instructions, launch MCP servers, contact an AI provider, or verify runtime behavior. Findings help you review configuration risks; they are not a security certification or a guarantee that an agent is safe.

Privacy-first tools

Tool content is processed in your browser.

Read the privacy and data-flow details