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Resize, convert, and verify multiple images at once.

Create downloadable ICS calendar events.

Profile, clean, and convert CSV data locally.

Strictly calculate and verify SHA-256 file checksums.

Create modern text hashes locally.

Preview, apply, and verify batch watermarks.

Track job applications locally with CSV backup.

Build and atomically apply verified RFC 6902 JSON patches.

Validate bounded JSON Schema and instance data locally.

Add and verify visible page numbers locally.

Edit and combine PDF pages in one local workspace.

Create verified PNG or JPG files from selected PDF pages.

Extract and verify selectable PDF text locally.

Create and round-trip verify structured QR codes.

Inspect bounded static response evidence from one public URL.

Inspect and normalize Unicode text with encoding evidence.

Review bounded X.509 fields and supplied chain links.

Create and verify standard ZIP archives locally.

Inspect ZIP structure and extract selected verified files locally.

Find overlapping work hours across time zones.

Review WCAG contrast and isolated HTML audit evidence.

Calculate exact age and the next birthday.

Generate robots.txt rules for AI crawlers and search bots.

Build iOS and Android project icon packs.

Search, inspect, copy, and export standard ASCII codes.

Trim local audio into a verified PCM WAV.

Calculate adult BMI with threshold evidence.

Find break-even units and target-profit volume.

Count weekdays between dates.

Compare canonical URL relationships with explicit evidence.