Utilities & Online Tools

Batch conversion for office documents and ebooks

Display and export a regex diagram

Mathematical worksheets with natural notation and units

Correct and measure microscopy height fields

Find an unfamiliar character by drawing its shape

Build compound units instead of choosing only fixed conversion pairs

Break an HTTP request into timing stages

Search text with patterns and an interactive view

Java PDF assembly, booklet layout, and metadata tools

Keep device folders synchronized with cloud folders

Edit and replay recorded packet traffic

Free conversion between lossless and lossy audio formats

A Windows ping utility with high-resolution timing and graphs

Generate PDF and Word documents from office-editor templates

Inspect and edit photographic metadata

Explore cellular towers and observed signal trails

Resize by percentage or pixel dimensions

Evaluate RAW exposures before developing them

Self-host PDF processing with a browser interface and API

RF design formulas from attenuation to link budgets

Remove unwanted brightness gradients from astroimages

Transfer data across many Internet protocols

Overlay and edit animated or still images

Create reusable text cleaners on a Mac