Articles · Cross-category

Fun, PDF, media, and color tools

One hundred new browser-local pages thicken the thinner families: party games and pickers under Fun, pdf-lib metadata and page tools, pixel and audio math in Media, OKLCH and palette helpers in Color, plus schedule, identity, protocol, security, and encoding entries. Start here when you know the job, not the route name.

Batch DP adds another hundred Toolcore tools aimed at families that were thin compared with Math or Writing: entertainment pickers, PDF metadata and page operations, media pixel math, and color palette helpers—plus tracking format checks and HTTP header parsers.

Fun — dice, wheels, and party prompts

PDF operations and media math

Color palettes and calendar helpers

Tracking formats and header parsers

Common use cases

  • Pick a random name, roll 2d6, or strip PDF metadata before sharing a file—all in the browser.
  • Convert hex to triadic palettes, estimate audio duration from bitrate, or parse Set-Cookie from curl output.
  • Validate USPS or UPS tracking shapes and check HCPCS or ASIN format before lookup elsewhere.

Common mistakes to avoid

  • Treating format checks as live lookups

    Identity and tracking pages confirm shape only—they do not query carrier or registry databases.

  • Using hash demos for security decisions

    Checksum and Jenkins-style demos illustrate algorithms—they are not audited cryptography.

  • Expecting PDF grayscale from every upload

    PDF tools use pdf-lib locally; scanned image PDFs may not transform the way vector exports do.

FAQ

Which categories grew the most?

This batch thickens Fun (12 pages), Media (18), PDF (12), and Color (12), plus Schedule, Identity, Protocol, Security, and Encoding entries—all client-side.

Do PDF tools upload files?

No. PDF pages load files in your browser with pdf-lib, same as the existing PDF hub—nothing is sent to a server.

Can agents prefill these tools?

Single text fields often accept q or qb. PDF uploads and multi-field number or date tools open without URL prefill.