About

12 file converters for images, documents and data in 16 languages. Everything runs locally in your browser, nothing is uploaded.

What is Convert Tools?

Convert Tools is a free online file conversion site: image format conversion and compression, images to PDF, Word to Markdown, Markdown and HTML conversion, JSON with YAML/CSV/XML, Excel with CSV, and Base64 encoding.

Tools

12 tools covering image, document and data conversion.

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Image format converter

Convert PNG, JPG, WebP, BMP, GIF or SVG to PNG, JPEG or WebP, with quality and size control.

↓

Image compressor

Shrink image file size with quality and width limits, compare before and after, then download.

P

Images to PDF

Combine JPG, PNG or WebP images into a single PDF, reorder pages and set margins.

W

Word to Markdown

Extract headings, lists and tables from .docx files as Markdown or plain text.

MD

Markdown to HTML

Convert Markdown to clean HTML with a live preview and standalone HTML export.

H

HTML to Markdown

Convert HTML pages or snippets to Markdown, keeping headings, lists, links and tables.

Y

JSON ↔ YAML

Convert JSON to YAML and back, ready for config files.

C

JSON ↔ CSV

Convert JSON arrays to CSV and CSV back to JSON, with flattened nested keys.

X

JSON ↔ XML

Convert JSON to XML and back, with a configurable root element.

XL

Excel ↔ CSV

Turn .xlsx sheets into CSV, or build a real .xlsx workbook from CSV.

64

Image to Base64

Get the Data URL or raw Base64 of any image for HTML, CSS or JSON.

B64

Base64 encoder / decoder

Encode text to Base64 or decode it back, with UTF-8 and URL-safe support.

Privacy

All tools run entirely in your browser. Files and text are never sent to a server, so you can work with real documents safely.

Tech stack

Vue 3 + Vite, 16 languages, 8 themes, static prerendering for search engines.

Contact

Questions or suggestions? Email us: Send feedback