19 free online tools that run in your browser
Convert and merge PDFs, resize images, format and validate JSON, process CSV files, generate invoices, QR codes, passwords and colour palettes — without uploading a single file. Everything on this site is processed locally on your own device.
Most online converters work by sending your document to a server you know nothing about, then deleting it at some unspecified point afterwards. That is a poor trade for an invoice, a contract or a photo of an ID. These tools were built to avoid that trade entirely: the file is opened by your browser, processed by your own machine, and never transmitted anywhere.
Your files never leave your device
Every tool runs entirely in your browser using the File and Canvas APIs. Nothing is uploaded, nothing is stored on a server, and nothing is retained after you close the tab.
Free, with no account
There is no signup, no trial, no watermark and no export limit. The tools are supported by advertising so they can stay free to use.
Instant, even offline
Because the processing happens locally there is no upload wait and no queue. Most conversions finish the moment you click, however large the file.
Documents & PDF
PDF Merger
Merge several PDF files into one document, all locally in your browser.
Open toolPDF to Word Converter
Convert PDF files into editable Word documents right in your browser.
Open toolImage to PDF Converter
Combine JPG, PNG, and other images into a single PDF without uploading them.
Open toolImage Resizer
Resize and scale images to exact dimensions without losing quality, in-browser.
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Billing & Invoices
Invoice Generator
Create polished, professional invoices in your browser and download them as PDF for free.
Open toolRestaurant Bill Generator
Generate itemized restaurant and cafe bills with taxes and totals in seconds.
Open toolFuel Bill Generator
Create Indian fuel station receipts with GST, vehicle number, and rate details.
Open toolTelecom Bill Generator
Build clear mobile and broadband bills with plan charges, taxes, and totals.
Open tool
Data & Developer
JSON Formatter
Beautify, indent, and minify JSON with instant syntax error detection.
Open toolJSON Validator
Check whether your JSON is valid and pinpoint the exact syntax error.
Open toolCSV Processor
View, filter, and transform CSV data quickly without a spreadsheet app.
Open toolBase64 Encoder / Decoder
Encode text and files to Base64 or decode Base64 back to its original form.
Open toolURL Encoder / Decoder
Percent-encode URL parameters or decode encoded links back to readable text.
Open toolText Diff Checker
Compare two blocks of text and highlight every line that changed.
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Generators & Utilities
QR Code Generator
Turn links, text, or contact details into scannable QR codes you can download.
Open toolPassword Generator
Create strong, random passwords with custom length and character options.
Open toolHash Generator
Generate MD5, SHA-1, and SHA-256 hashes from text for checksums and verification.
Open toolColor Palette Generator
Generate harmonious color palettes with HEX and RGB values for your designs.
Open toolUnit Converter
Convert length, weight, temperature, and more between metric and imperial units.
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