Utilities & Online Tools

PDF reading tools for technical books and research papers

View and batch-process images on Windows

Send a file batch with delivery management and optional encryption

Bridge transfers between different servers and cloud services

Isolate image subjects through a web tool or API

Combine photo corrections with layers and masks

Send files using a short word-based code

Recompress and check PNG images

Optimize PNG compression and ancillary chunks

Navigate synchronized DICOM views and image series

Compress PNG files with palette quantization

Translate between ABC music notation and MIDI

Monitor expected DNS records and share update requests

Bulk resize and crop to consistent dimensions

Enlarge images with selectable scale factors

Construction and everyday calculations with searchable tasks

Automate repeated photo preparation steps

Combine photo edits, collages and captions

A consolidated collection of document and specialist converters

Fill, sign, and assemble PDFs from several input routes

Use Linux networking tools with kernel-aware versions

PDF conversion for Office, iWork, and ebook workflows

Apply image-processing filters through several interfaces

Calculations in algebraic geometry and commutative algebra