Developer Tools
Compare local and hybrid OpenDataLoader extraction to identify PDF pages where formulas, charts, or dense visuals may need AI-assisted parsing
formula-chart-heavy-pdf-analyzerAI Tools
Convert scanned or image-heavy PDFs into Markdown with OpenDataLoader hybrid OCR, with a graceful fallback when the hybrid backend is unavailable
scanned-pdf-ocr-to-markdownDeveloper Tools
Open password-protected PDFs with OpenDataLoader and export them as Markdown, JSON, or text once the correct password is provided
encrypted-pdf-converterMath & Numbers
Round numbers to integers, decimal places, tens, or hundreds using a simple rounding mode selector
rounding-calculatorMath & Numbers
Count significant figures and round numbers to a target number of significant digits
sig-fig-calculatorMath & Numbers
Calculate square roots, check whether a value is a perfect square, and verify the squared result
square-root-calculatorMath & Numbers
Simplify ratios, calculate ratio shares, and convert between ratio, fraction, and decimal forms
ratio-calculatorMath & Numbers
Add, subtract, multiply, and divide values written in scientific notation, then return standard, scientific, and engineering forms
scientific-notation-calculatorMath & Numbers
Convert numbers between standard decimal format and scientific notation, with optional engineering notation output
scientific-notation-converterDeveloper Tools
Compare StructTree-enabled and plain PDF extraction to see whether a document behaves like a tagged PDF and how much semantic structure it exposes
tagged-pdf-inspectorMath & Numbers
Solve common percentage questions including percentage of a total, value from a percentage, and percentage change
math-percentage-calculatorDate & Time
Compare multiple participants across time zones, find overlapping working windows, and export the best meeting slots to ICS
time-zone-workflow-scheduler