About want2convert.com

Free file conversion and editing tools. No accounts. No uploads. No data collected. Ever.

What Is want2convert.com?

want2convert.com is a free, browser-based file conversion and document editing platform. It gives you access to over 50 tools covering PDF manipulation, image processing, Office document conversion, and developer utilities — all without installing software, creating an account, or sending a single byte of your files to a remote server.

The tools cover four main categories:

PDF tools — merge, split, compress, rotate, reorder, watermark, protect, unlock, crop, and add page numbers to PDF files.
PDF conversion — convert PDFs to and from Word, Excel, PowerPoint, JPG, PNG, HTML, and plain text, and vice versa.
Image tools— compress, resize, crop, convert, and extract text from images, all using the browser's built-in Canvas API.
Office & developer tools — JSON formatter, Base64 encoder/decoder, URL encoder, Markdown converter, QR code generator, barcode generator, hash generator, password generator, colour converter, number base converter, text case converter, and more.

The site was built for the millions of people who need a quick file conversion and don't want to install desktop software, pay for a subscription, hand over an email address, or trust a third-party cloud service with documents that may be sensitive. That's a reasonable thing to want, and want2convert.com exists to provide it.

The Privacy Promise — What It Actually Means

"Your files never leave your browser" is the core promise of this site, and it's worth explaining exactly what that means technically, not just as a marketing claim.

Every conversion tool on want2convert.com runs its processing logic inside your web browser using WebAssembly (WASM) and JavaScript libraries. WebAssembly is a low-level binary format that allows performance-intensive code — traditionally the kind that runs only in desktop applications — to execute directly inside a browser tab, at near-native speed, without network round-trips.

When you upload a PDF to the Merge PDFtool, the file is read into your browser's memory using the browser File API. The merging logic — handled by the open-source pdf-lib library compiled to WebAssembly — runs in a JavaScript worker or the main thread. The resulting merged PDF is written into memory and offered to you as a download. At no point does the file travel over the network.

There is no server-side processing endpoint. There is no database storing file metadata. There is no queue system or job ID tracking your conversion. The server that hosts want2convert.com delivers HTML, CSS, and JavaScript to your browser — and then its job is done. Everything else happens on your device.

This matters for:

Legal documents, contracts, and NDAs — content stays private between the parties who need it
Financial records — bank statements, tax returns, payroll — never pass through a third party
Medical and patient documents — HIPAA-relevant content is not transmitted
Intellectual property — proprietary designs, formulas, and trade secret documentation stay on your device
Personal identification — passports, ID scans, licence documents handled without exposure

The only exception to this privacy architecture is Google AdSense, which loads advertising scripts in production. Google's ad cookies are third-party and subject to Google's own privacy policy. Our Privacy Policy explains this in full, including how to opt out of personalised advertising. Ads are never placed inside the tool interface — between the upload zone and the conversion button, or between the conversion button and the download — only in clearly designated ad positions above the tool and below the result.

The Technology — Open Source, All the Way Down

Every library powering want2convert.com is open source. No proprietary conversion APIs, no dependencies on commercial services like CloudConvert, Adobe Document Services, or ILovePDF. Here's what runs each category of tool:

PDF Processing — pdf-lib and pdfjs-dist

pdf-lib is a pure-TypeScript library for creating and modifying PDF documents in any JavaScript environment. It handles merging, splitting, rotating, cropping, adding page numbers, watermarking, and password protection — all the operations that modify the structure of a PDF. It works entirely in memory, producing a new PDF as a Uint8Array that the browser downloads as a file.

pdfjs-distis Mozilla's PDF.js library — the same engine that powers Firefox's built-in PDF viewer — compiled for npm. It renders PDF pages to HTML Canvas elements (used for generating page thumbnails and PDF-to-image conversion) and extracts text content (used for PDF-to-Word and PDF-to-TXT conversion).

Image Processing — Canvas API and browser-image-compression

Most image tools use the browser's built-in Canvas API directly — no additional library required. To resize an image, the tool draws it onto a canvas at the target dimensions and exports the canvas contents as a new Blob. Format conversion (JPG to PNG, PNG to WebP, etc.) uses canvas.toBlob(mimeType). Grayscale conversion reads pixel data via getImageData, sets each pixel's RGB channels to the luminance value, and writes the result back.

Image compression uses browser-image-compression, an open-source library that wraps the Canvas API with configurable quality and max-width settings.

OCR (image to text) uses tesseract.js — the JavaScript port of the Tesseract OCR engine, compiled to WebAssembly. The WASM binary is downloaded on first use and cached by the browser. No image data leaves the device.

Office Conversion — SheetJS, mammoth, docx, jspdf, html2canvas

Office format conversions use a chain of open-source libraries:

SheetJS (xlsx) — reads and writes Excel workbooks (.xlsx, .xls) and CSV files. Used for Excel-to-CSV, CSV-to-Excel, and Excel-to-PDF pipelines.
mammoth — converts DOCX files to HTML, preserving paragraph structure, headings, and basic formatting. Used as the first step in the Word-to-PDF pipeline.
docx — creates .docx files programmatically. Used as the output step in the PDF-to-Word pipeline, writing extracted text as a structured Word document.
jspdf — generates PDF files from JavaScript. Used as the output step in all Office-to-PDF pipelines.
html2canvas — renders HTML/DOM nodes to a canvas element, which is then fed to jspdf. This is how spreadsheet tables and Word document HTML are captured and embedded into PDFs.
jszip — reads ZIP archives. PPTX and EPUB files are ZIP archives containing XML files. jszip unpacks them so the conversion pipeline can process the slide or chapter XML.

Developer Tools — Web APIs and Native JavaScript

The developer utility tools use no external libraries at all. The hash generator uses the browser's built-in crypto.subtle.digest() API for SHA-256, SHA-1, and SHA-512. The password generator uses crypto.getRandomValues() — a cryptographically secure random number generator built into every modern browser. The JSON formatter uses JSON.parse and JSON.stringify. Base64 uses btoa and atob. URL encoding uses encodeURIComponent. These are zero-dependency tools that use browser primitives directly.

Who Built This — And Why

want2convert.com was built by a small, independent development team with a straightforward motivation: existing file conversion sites are either expensive, privacy-invasive, or both.

The major cloud conversion services upload every file to their servers. Some retain files for days. Some use the content to improve their AI models. Some have had data breaches. For a quick format conversion of a non-sensitive file, this may be fine. For a contract, a financial statement, or a medical record, it's not.

Desktop software solves the privacy problem but creates friction: you need to download, install, and periodically update a 200 MB application to do a 10-second task. For people who convert files occasionally — not daily — that's a poor trade-off.

WebAssembly changed the equation. By 2024, the entire processing pipelines that used to require native desktop applications could run in a browser tab — at speeds fast enough to be genuinely useful. We saw the opportunity to build a site that gives users the privacy of a local application with the convenience of a web tool, and want2convert.com is the result.

The site is funded by Google AdSense advertising. We don't sell user data (we don't collect any) and we don't have a premium tier that unlocks features behind a paywall. Every tool is free, for every user, always.

The Complete Tool List

Here's every tool currently available on want2convert.com, grouped by category:

No Accounts. No Storage. No Exceptions.

Some things that want2convert.com will never do:

Ask you to create an account. There is no user database. There is no sign-in flow. There is no email address to verify. You open a tool, use it, and leave — completely anonymously.
Store your files. Files are loaded into browser memory for processing and released when you close or navigate away from the page. They are never written to disk on our side because there is no disk on our side that receives them.
Add watermarks to your output.The converted file you download is clean. No "Converted by want2convert.com" stamp, no promotional footer, no limitations on how you use the output.
Throttle conversions or impose page limits.There is no "5 free conversions per day" cap. There is no page limit on PDFs (other than what your device's memory can handle). There is no premium tier that unlocks larger files.
Use external conversion APIs. No CloudConvert, no Adobe Document Services, no ILovePDF API. Every conversion runs on open-source libraries executing in your browser. The only network requests the tool pages make are to load the JavaScript libraries themselves on first use.

Best-Effort Conversions — What to Expect

Some conversion pipelines are inherently imperfect, and we label these clearly on their tool pages. PDF-to-Word conversion, for example, extracts text from a PDF using Mozilla's PDF.js and writes it into a Word document using the docx library. Text and paragraph structure come across well. Complex multi-column layouts, custom fonts, embedded images, and tables may simplify or reflow.

This is not a limitation of want2convert.com specifically — it's a fundamental characteristic of the PDF format. PDFs are designed for viewing and printing, not for re-editing. They store content as positioned text runs and graphics, not as semantically structured paragraphs and headings. Reconstructing that structure requires inference, and inference is imperfect.

Tools with best-effort output are: PDF to Word, PDF to Excel, PDF to PowerPoint, Word to PDF, Excel to PDF, PowerPoint to PDF, and EPUB to PDF. Each of these pages shows a fidelity disclaimer. For all other tools — PDF-to-image, image compression, format conversion, and developer utilities — the output is lossless or predictable.

Contact Us

For questions, feedback, bug reports, or partnership enquiries, email us at hello@want2convert.com.

We read every email and respond to tool bug reports within a few business days. If you encounter a conversion error — a file that crashes the tool, an output that's clearly wrong — please include the file type, file size, and browser version in your report. We can't accept file attachments for privacy reasons, but a description of the problem is usually enough to reproduce it.

Feature requests are welcome. If there's a conversion or editing operation you need that isn't on the site, let us know. We prioritise additions based on how commonly they're requested and whether a high-quality open-source library exists to power them.