All the utilities you need,
securely nested in one place.
Convert documents, merge PDFs, build custom QR codes, generate invoices, format JSON, resize images, and calculate financials. All actions execute locally in your browser—we never see your files.
PDF Merger
POPULARCombine multiple PDF files into one single document in seconds.
Use ToolPDF Splitter
POPULARSplit PDF files into individual pages or extract custom page ranges.
Use ToolPDF Page Organizer
Rotate, reorder, or delete specific pages visually from a PDF.
Use ToolImage to PDF Converter
Convert JPEG, PNG, WebP photos into a compiled PDF file.
Use ToolQR Code Generator
POPULARCreate custom QR codes with adjustable colors, margins, and logos.
Use ToolQR Code Scanner
Scan and decode QR codes from your webcam or uploaded image files.
Use ToolInvoice Generator
POPULARDraft, customize, and print professional invoices with custom tax lines.
Use ToolCompound Interest Calculator
POPULARForecast investment growth with compound intervals and charting.
Use ToolMortgage & Loan Calculator
Calculate monthly payments and inspect amortized scheduling details.
Use ToolTip Calculator & Splitter
Quickly split dining bills, calculate custom tip percentages.
Use ToolDiscount & Tax Calculator
Find savings, final price, and added sales taxes for store products.
Use ToolImage Format Converter
POPULARBatch convert PNG, JPG, WebP, GIF, or SVG formats.
Use ToolImage Compressor & Resizer
Shrink image file bytes and adjust pixel width/height details.
Use ToolColor Palette Extractor
Upload an image to extract color swatches and check contrast ratios.
Use ToolCSS Gradient Generator
Design linear or radial CSS background gradient color codes.
Use ToolCSS Box Shadow Generator
Fine-tune offsets, spreads, and blurs to export shadows code.
Use ToolJSON Formatter & Inspector
POPULARValidate, beautify, and search JSON files in a collapsible tree.
Use ToolText Diff Checker
Compare two code snippets side-by-side to highlight additions and removals.
Use ToolRegex Tester & Matcher
Test javascript regular expressions with highlighting and rule details.
Use ToolBase64 Encoder/Decoder
Translate strings and files to secure Base64 formats.
Use ToolCryptographic Hash Generator
Encode text into MD5, SHA-1, SHA-256, or SHA-512 outputs.
Use ToolMarkdown Live Editor
Edit Markdown syntax in real-time with an active HTML viewer.
Use ToolWord & Read-Time Counter
Analyze word count, lines, density, and estimated reading speeds.
Use ToolText Case Converter
Switch between UPPERCASE, lowercase, camelCase, snake_case, title.
Use ToolLorem Ipsum Generator
Generate placeholder paragraphs, words, or lists for designs.
Use ToolBase Number Converter
Convert numbers between Binary, Octal, Decimal, and Hex formats.
Use ToolPassword & UUID Generator
POPULARMake randomized cryptographically-strong strings and UUID v4 keys.
Use ToolBMI & BMR Health Calculator
Calculate body mass index, base metabolic rate, and calorie goals.
Use ToolUniversal Unit Converter
Quickly convert dimensions of length, weight, volume, or temperature.
Use ToolFrequently Asked Questions
Answers regarding security, compliance, and browser-side file parsing.
Are my files uploaded or stored on any server?
No. ToolNest Online utilizes standard client-side technologies (e.g., HTML5 FileReader, canvas buffers, WebAssembly, and local Javascript engines). All calculations, image rendering, and PDF stitching occur strictly in your browser's memory sandbox. Your files never cross the network.
Does ToolNest Online support mobile devices?
Yes, our layout is fully responsive and optimized for smartphones, tablets, laptops, and desktop browsers. You can resize images, convert text, and scan codes directly from your smartphone's camera.
Is it free to use for commercial purposes?
Absolutely. ToolNest Online is fully open and free for personal, educational, and commercial work. There are no volume limitations, subscriptions, or hidden charges.