All-in-One Tools Collection

A broad collection of online tools for development, AI, design, and productivity tasks.

Showing page 8 of 145 (12 tools on this page)

Scanned PDF OCR to Markdown

Convert scanned or image-heavy PDFs into Markdown with OpenDataLoader hybrid OCR, with a graceful fallback when the hybrid backend is unavailable

AI & Generators Use Tool →

Encrypted PDF Converter

Open password-protected PDFs with OpenDataLoader and export them as Markdown, JSON, or text once the correct password is provided

Developer & Web Use Tool →

PDF Image & Caption Extractor

Extract images from PDFs, match nearby captions, and generate an HTML index package using OpenDataLoader

Images, Audio & Video Use Tool →

PDF Page Range Extractor

Extract only selected PDF pages with OpenDataLoader and export the subset as Markdown, JSON, or text

Developer & Web Use Tool →

Absolute Value Calculator

Calculate the absolute value of positive, negative, or decimal numbers and explain the sign relationship

Math, Date & Finance Use Tool →

Rounding Calculator

Round numbers to integers, decimal places, tens, or hundreds using a simple rounding mode selector

Math, Date & Finance Use Tool →

Significant Figures Calculator

Count significant figures and round numbers to a target number of significant digits

Math, Date & Finance Use Tool →

Square Root Calculator

Calculate square roots, check whether a value is a perfect square, and verify the squared result

Math, Date & Finance Use Tool →

Proportion Calculator

Solve proportion equations of the form a/b = c/d and calculate the missing term

Math, Date & Finance Use Tool →

Ratio Calculator

Simplify ratios, calculate ratio shares, and convert between ratio, fraction, and decimal forms

Math, Date & Finance Use Tool →

Scientific Notation Calculator

Add, subtract, multiply, and divide values written in scientific notation, then return standard, scientific, and engineering forms

Math, Date & Finance Use Tool →

Scientific Notation Converter

Convert numbers between standard decimal format and scientific notation, with optional engineering notation output

Math, Date & Finance Use Tool →