Math & Numbers
Calculate permutations with or without repetition, plus circular arrangements, with formulas and optional steps
permutation-calculatorMath & Numbers
Break an integer into prime factors, show the factorization string, and optionally include divisor properties and factorization steps
prime-factorization-calculatorMath & Numbers
Raise a base to any real exponent, with optional scientific notation and verification details
power-calculatorDeveloper Tools
Detect strikethrough-marked text in review PDFs and generate a report for contract, policy, and revision analysis
pdf-strikethrough-review-extractorMedia
Extract images from PDFs, match nearby captions, and generate an HTML index package using OpenDataLoader
pdf-image-caption-extractorDeveloper Tools
Extract only selected PDF pages with OpenDataLoader and export the subset as Markdown, JSON, or text
pdf-page-range-extractorMath & Numbers
Solve proportion equations of the form a/b = c/d and calculate the missing term
proportion-calculatorDeveloper Tools
Compare extraction with and without repeated page furniture to spot header/footer noise before using PDF text in RAG, summarization, or editing workflows
pdf-header-footer-noise-removerAI Tools
Extract clean text from PDFs with OpenDataLoader for summarization, translation, embedding, and other LLM workflows
pdf-to-clean-text-for-llmData Processing
Extract tables from PDFs with OpenDataLoader and export them as structured JSON, flat CSV, or HTML tables
pdf-table-extractor-to-csv-jsonDeveloper Tools
Extract structured OpenDataLoader JSON from a PDF and browse headings, paragraphs, tables, lists, pages, and bounding boxes in an explorer view
pdf-to-json-structure-explorerDeveloper Tools
Convert PDFs into structured Markdown using OpenDataLoader with options for HTML-rich output, images, page separators, and tagged-PDF structure
pdf-to-structured-markdown-converter