Free · Private · Browser-Based

Convert Anything
From A to B

Free online file conversion for images, documents, spreadsheets, audio and video. Everything runs in your browser — nothing uploaded, nothing stored.

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File Types

Choose a Converter Category

Browse by file type to find the exact converter you need.

Image Converter

JPG, PNG, WebP, HEIC, AVIF, GIF, SVG, TIFF and more.

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Document Converter

PDF, Word, HTML, Markdown, RTF, TXT and more.

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Spreadsheet Converter

CSV, Excel, ODS, TSV and more.

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Audio Converter

MP3, WAV, M4A, OGG and more.

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Video Converter

MP4, MOV, WebM, AVI, GIF and more.

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All Converters

Browse the full directory of 150+ conversion tools, organised by format.

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Most Used

Jump straight to the most searched file conversions.

HEIC to JPG Converter HEIC to PNG Converter JPG to PNG Converter JPG to WebP Converter PNG to JPG Converter PNG to WebP Converter WebP to JPG Converter WebP to PNG Converter HTML to PDF Converter HTML to RTF Converter HTML to TXT Converter HTML to Word Converter
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Privacy First

Your Files Never Leave Your Browser

Unlike most online converters, AintoB never uploads your files to a server. Every conversion runs entirely in your browser using local processing — which means:

  • No file uploads — your data stays on your device
  • No server storage — nothing is saved or logged
  • No account required — completely anonymous
  • Works offline after the page loads

Your Browser

File loaded → Converted → Downloaded

100% Local

How It Works

Convert Files in Three Steps

1

Choose a Converter

Browse by category or format, or search for your exact conversion (e.g. "HEIC to JPG").

2

Drop or Select Your File

Drag and drop your file onto the converter, or click to browse from your device.

3

Download the Result

Click convert and download your file in the new format — ready in seconds.

Why AintoB?

Built for Speed, Privacy & Simplicity

No installs, no accounts, no file uploads. Every conversion runs entirely in your browser.

Instant

Results in milliseconds. No queues, no waiting, no server round-trips.

Private

Your data never leaves your browser. Zero server storage, zero uploads.

Mobile-friendly

Works flawlessly on any device — phone, tablet, or desktop.

Always Free

No sign-up, no subscription, no hidden costs. Free forever.

FAQ

Frequently Asked Questions

Yes, every tool on AintoB.com is completely free with no registration or account required. There are no hidden costs or premium tiers.

Your files are processed entirely within your browser using local JavaScript. Nothing is ever uploaded to our servers — your data stays on your device from start to finish.

AintoB supports image formats (JPG, PNG, WebP, HEIC, AVIF, GIF, SVG, TIFF), document formats (PDF, Word, HTML, Markdown, RTF, TXT), spreadsheet formats (CSV, Excel, ODS, TSV), audio formats (MP3, WAV, M4A, OGG), and video formats (MP4, MOV, WebM, AVI).

No. AintoB works entirely in your web browser — no app to download, no plugin to install. Open the page, drop your file, and convert.

For browser-based conversion we recommend files under 50 MB for the best experience. Very large files may take longer to process depending on your device performance.