Source receipt

Licenses and adaptations.

Siftlet's original source is released under the MIT License. Third-party notices ship with the repository.

Sprite Sheet Splitter

The connected opaque-region detector is adapted from AskTao/image-splitter, copyright 2025 AskTao, under the MIT License. Grid slicing, browser UI, ZIP flow, limits, and tests are Siftlet work.

CSS Filter Generator

Color matching uses css-filter-converter, copyright 2022 Ovidijus Parsiunas, under the MIT License. The product lead came from the MIT-licensed Morphling listing; Morphling application code is not included.

Media Metadata Inspector

EXIF parsing uses exifr, copyright 2020 Mike Kovarik / Mutiny.cz, under the MIT License. MediaInsightHub led us to the need; its application code is not included.

ZIP export

ZIP creation uses JSZip under its MIT option.

PDF creation and editing

PDF page numbering, watermarking, and print-sheet export use pdf-lib under the MIT License.

Barcode generation

Barcode symbol rendering uses bwip-js, copyright 2011-2026 Mark Warren, under the MIT License. Siftlet supplies the value validation, check-digit receipts, batch input, label layout, PDF workflow, and browser interface.

Local email viewers

EML and selected MBOX message parsing use postal-mime under MIT-0. Outlook MSG parsing uses @kenjiuno/msgreader under Apache-2.0. HTML cleanup uses DOMPurify under its Apache-2.0 option. The streamed MBOX index, safe readers, tracker blocking, link checks, attachment workflows, and export receipts are Siftlet work.

ICS Calendar Viewer

iCalendar parsing and recurrence expansion use ical.js, copyright Philipp Kewisch and contributors, under MPL-2.0. The calendar interface, conflict checks, diagnostics, and CSV, JSON, report, and print workflows are Siftlet work.

Independent implementations

The earnings clock, timecard, and big-text tools are original Siftlet implementations of common utility patterns.