Issue 01 · File Conversion
Convertoza is a free browser-based file converter. It converts PDFs, images, Word documents, and spreadsheets entirely inside your browser tab — no file upload, no server, no account required. Every conversion runs locally using WebAssembly and JavaScript, which means your files never leave your device.
A private, editorial-grade file converter. Drop a file, pick a target format, download. No uploads, no queue, no watermark.
14
format pairs
0
files uploaded
<1s
on most images
In this issue
Directory
Browser-only conversion covers the formats most people actually need. If a format isn't here, it's usually because it needs a server.
The Method
01
Drag a file into the converter or click to browse. Your browser detects the format.
02
Pick the target format from a curated list of what's actually possible client-side.
03
The result renders in your tab. Save it locally — nothing was ever uploaded.
Privacy by architecture
Every conversion runs on your CPU using WebAssembly and standard browser APIs. There is no upload endpoint, no temporary storage, no analytics on file content. Close the tab and every trace is gone.
No uploads
Zero network calls with your files.
No accounts
Nothing to sign up for, ever.
Fast
Runs at native speed on your device.
Trusted by makers
"Fastest converter I've found. Doesn't upload my invoices to some sketchy server."
"Batch PDF → PNG in seconds. Replaced three paid tools with one tab."
"The privacy story is real — I checked the network tab. Nothing leaves my browser."
The Index
Extract the first page of any PDF as a high-resolution PNG image, rendered at 2× scale in your browser. No file leaves your device — the conversion runs entirely in your tab using pdf.js.
Use cases
Related
Pull the raw text out of any PDF. Works with searchable PDFs — scanned documents need OCR, which isn't included in this browser-only version.
Use cases
Related
Convert JPG photos to lossless PNG using the browser's native canvas encoder. Instant, private, and pixel-accurate for the visible content.
Use cases
Related
Flatten PNG images to JPG for smaller file sizes. Transparent pixels are composited onto a white background.
Use cases
Related
Extract text from a Word document and typeset it as a paginated PDF using Helvetica. Note: layout, fonts, images, and tables are not preserved — this is a text-first conversion, ideal when you need a readable PDF fast without a server round-trip.
Use cases
Related
Convert Word documents to clean semantic HTML using Mammoth. Preserves headings, lists, emphasis, and links — perfect for publishing to a CMS or blog.
Use cases
Related
Export the first sheet of an Excel workbook as CSV — perfect for importing into any tool that speaks tables. Formulas are read as their computed values.
Use cases
Related
Turn spreadsheet rows into a JSON array with the first row as keys. Useful for feeding data into APIs, seeding a database, or wiring up a prototype.
Use cases
Related
0
Files uploaded to any server — ever
100%
Processed in your browser tab
20
Free conversions every day
0
Account or signup required
Unlike cloud-based converters such as ilovePDF, Smallpdf, or Adobe Acrobat Online, Convertoza never sends your files to a remote server. All conversion logic runs inside the user's browser tab using WebAssembly libraries including pdf.js, Mammoth.js, SheetJS, and Tesseract.js. This architecture makes Convertoza one of the only fully client-side file converters available for free, with no watermarks and no account requirement.
FAQ
Nowhere. Every conversion happens inside your browser tab using client-side JavaScript. Your files never leave your device.