Tool Directory

Every tool, one boot away.

Search or scan the full SimonOS toolbox. Everything here is live, local-first, and ready to use in the browser.

12

Live tools online

Grouped by category, indexed for search, and linked directly.

Time & Date

2 tools

Converters

2 tools

Text & Code

3 tools

Image

1 tool

PDF Tools

2 tools

Document Tools

2 tools

Time & Date

2 tools

Timestamp Converter

Convert Unix timestamps, ISO strings, and readable dates without guessing which format you are looking at.

Timezone Converter

Translate one meeting time across cities and named time zones with quick previews for the places you care about.

Converters

2 tools

Length Converter

Switch between metric and imperial length units instantly, with quick swaps and practical equivalents.

Base64 Converter

Encode and decode UTF-8 text as Base64 for payloads, tokens, and debugging.

Text & Code

3 tools

Text Case Converter

Flip text between sentence case, title case, uppercase, lowercase, slugs, and developer-friendly identifiers.

Format, validate, minify, and sort JSON payloads for APIs, configs, and logs.

Generate one or many random UUID v4 identifiers for fixtures and records.

Image

1 tool

Resize PNG, JPEG, and WebP images locally in the browser with aspect-ratio locking and quick export formats.

PDF Tools

2 tools

Combine multiple PDF files locally in the browser with explicit ordering.

Optimize a PDF locally by rebuilding page data and reporting the actual byte savings.

Document Tools

2 tools

Markdown to PDF

Turn markdown notes into a local, printable PDF with headings, lists, quotes, and code blocks.

Extract selectable text from PNG, JPEG, and WebP scans or screenshots in the browser.