أدوات مجانية عبر الإنترنت
405+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by category below.
Total tools405Available free tools
Categories15Active categories
Most usedCSV to ExcelPopular right now
Recently addedInterval Music RepeaterNewest tool
YAML to JSON
Convert YAML into clean JSON with type parsing and adjustable indentation — entirely in your browser.
Dilution Calculator
Dilution calculator free — solve C1V1=C2V2 for stock concentration, volumes, or final strength. Lab prep in your browser, no signup.
Graph Node Builder
Free graph node builder with React Flow — create flowcharts and node diagrams, connect edges, export JSON or PNG. Runs in your browser.
Air Density Calculator
Calculate air density from temperature, pressure, and humidity, or from altitude. Shows kg/m³, virtual temperature, speed of sound, and comparison to sea-level standard. Free, browser-based.
XML to JSON
Convert XML into clean JSON with attribute handling, type parsing, and adjustable indentation — all in your browser.
Earthquake Magnitude Converter
Convert between earthquake magnitude scales — Mw, Ms, ML (Richter), mb, and Md. Estimates seismic moment, energy in joules, and TNT equivalent. Free, browser-based.
Polynomial Solver
Find roots of polynomials up to degree 6. Enter coefficients or an equation like x³ − 6x² + 11x − 6 = 0.
Inverse Matrix Calculator
Compute the inverse of a square matrix up to 6×6 using Gauss–Jordan elimination with verification.
Brand Color Extractor
Upload a logo or brand image to extract dominant colors with HEX, RGB, and CSS variable exports.
CSS Filter Generator
Tune CSS filter effects like blur, brightness, contrast, and hue-rotate with live preview and copy-ready CSS.
RSA Decrypt
Decrypt RSA-OAEP JSON payloads with your private key, including hybrid RSA + AES-GCM ciphertext.