AVIF to Markdown Converter: Free, Private, No Upload
Convert AVIF files to Markdown in your browser. Smaller output file, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.
- AVIF to Markdown
- Batch up to 20 files
- No upload, no account
- Metadata stripped
- 1Add up to 20 images
- 2Pick from 18 formats
- 3Download or copy the code
Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private
How do I convert AVIF to Markdown for free?
Drop your AVIF files into the tool above, choose Markdown as output, and download the result. Everything runs in your browser, so nothing is uploaded and there is no limit or watermark. It works on Windows, Mac, Linux, ChromeOS, iOS and Android — anywhere you have a modern browser.
- Price
- Free, no credits and no daily cap
- Account required
- No
- File uploaded to server
- No, processed locally in your browser
- Batch limit
- Up to 20 files at once
- Input format
- AVIF
- Output format
- Markdown
- Best for
- Markdown workflows, smaller files, faster sharing
- Works on
- Chrome, Edge, Firefox, Safari, iOS and Android browsers
- Privacy
- No upload, no tracking, metadata stripped
- Output quality
- Adjustable 1-100, defaults to 90
How to convert AVIF to Markdown
- 1
Drop your AVIF files
Drag up to 20 AVIF files onto the page or click to choose them. Everything runs in your browser.
- 2
Markdown is preselected
Output is already set to Markdown. Adjust quality, resize or batch if you want.
- 3
Download
Save each Markdown, or download all of them together as a ZIP.
AVIF to Markdown: what changes and when it makes sense
AVIF is an AV1 Image File Format. It is best known for the smallest files of any common web format at a given quality. The main drawbacks are slow encoding, patchy support outside browsers, and smoothing in fine textures at aggressive settings.
Markdown is not an image format. It is a Markdown image reference that wraps the image data as text. Its main appeal is keeping a document and its image together in a single .md file. The main drawbacks are unreliable rendering across platforms and very long lines that make the file hard to edit.
AVIF vs Markdown at a glance
| Property | AVIF | Markdown |
|---|---|---|
| Type | Raster image | Text encoding of an image |
| Compression | Lossy or lossless, based on the AV1 video codec | The image bytes are written out as Base64 text, which adds about 33 percent to the size |
| Transparency | Full alpha channel with soft edges | Same as the embedded image |
| Animation | Yes | Same as the embedded image |
| Colour depth | 8, 10 or 12 bits per channel, with HDR and wide-gamut support | Same as the embedded image |
| Support | Supported by current Chrome, Edge, Firefox and Safari, but many editors, social platforms and OS viewers cannot open it | Depends on the Markdown renderer, because some block data URIs in images |
| History | Finalised in 2019 by the Alliance for Open Media (Google, Mozilla, Apple, Microsoft, Netflix, Amazon, Intel and others). Based on AV1 video codec, successor to VP9 and HEVC. First major browser support: Chrome 85 (2020). | Markdown image syntax  has been standard since 2004. Data URI support depends on the renderer — GitHub sanitises them, VS Code preview shows them, Obsidian shows them. |
What actually changes in this conversion
- Markdown is an encoding of the image data, not a new compression scheme. The text is about a third larger than the binary file, so what you gain is portability rather than a smaller size.
- Transparency follows the image data being encoded. Markdown itself is only a text wrapper.
- Browser-based conversion works in 8-bit sRGB. Wide-gamut, 10-bit and 16-bit data are reduced. For colour-critical work, keep the original.
- EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.
About AVIF: history and technical details
Finalised in 2019 by the Alliance for Open Media (Google, Mozilla, Apple, Microsoft, Netflix, Amazon, Intel and others). Based on AV1 video codec, successor to VP9 and HEVC. First major browser support: Chrome 85 (2020).
Technical: AV1 intra-frame coding with variable block sizes from 4x4 to 128x128. Supports 8/10/12-bit colour, HDR, wide gamut (BT.2020), monochrome. HEIF-based container. Encoding is 10-100x slower than JPEG.
Real-world size: AVIF at quality 50 produces files 30-50% smaller than JPG at quality 85 with similar visual quality. Netflix reports 50% bandwidth savings after switching. Google reports AVIF is 20-30% smaller than WebP.
Popular tools: Adobe Photoshop 2024+, GIMP 2.10+, Squoosh, avifenc, ImageMagick, AVIF.io, Netflix (production use).
Alternatives: WebP (faster encode, less compression), JPG (universal), HEIC (Apple-only), JPEG XL (future format).
About Markdown: what you get
Markdown image syntax  has been standard since 2004. Data URI support depends on the renderer — GitHub sanitises them, VS Code preview shows them, Obsidian shows them.
Technical: . The line becomes extremely long and hard to edit. Some parsers cap line length or data URI size.
Real-world size: A 5 KB icon embedded in a README.md becomes a single ~7 KB line. GitHub renders it as broken. VS Code and Obsidian render it fine. Blog platforms vary.
Popular tools: VS Code, Obsidian, Typora, Marktext, GitHub (blocks), GitLab (blocks).
Alternatives: Relative path to image file, Hosted image URL, Markdown with reference links.
Browser and software compatibility
AVIF: Supported by current Chrome, Edge, Firefox and Safari, but many editors, social platforms and OS viewers cannot open it. Markdown: Depends on the Markdown renderer, because some block data URIs in images.
Markdown with an embedded image is not rendered everywhere. GitHub sanitises them.
Why people move away from AVIF
- Outside browsers, AVIF support is thin. Many editors, email clients and social platforms cannot open it.
- Uploaders that accept only JPG or PNG reject AVIF files.
- Fine texture such as film grain or fabric can look smoothed at aggressive AVIF settings.
Why people choose Markdown
- Markdown with an embedded image keeps a document self-contained in a single .md file.
- It is useful for note-taking tools and offline documents where linked files tend to go missing.
Common mistakes with AVIF
- Encoding AVIF at quality 90 thinking it will match JPG 90 — AVIF scale is different
- Using AVIF for small icons — encoding overhead wastes savings
- Expecting Photoshop (pre-2024) to open AVIF files — it will not
Best practices for keeping quality
- AVIF files are often made for the web already. If you need to edit one, convert from the original source rather than stacking another lossy pass.
- Some renderers, GitHub among them, do not display data URI images in Markdown. Check your target before relying on it.
- For documentation, a relative path to an image file is usually more portable and easier to maintain.
- Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
- Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
- Keep your original files. Conversions to a lossy format cannot be undone.
- When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.
AVIF to Markdown questions
Quick answers about privacy, quality, supported formats, file limits and how Markdown works.
Why convert AVIF to Markdown?
Markdown files are typically smaller than AVIF, which makes them faster to share, send and load. The trade-off is a small amount of image detail at low quality settings.
Will converting AVIF to Markdown lose quality?
At 90% quality, most people cannot tell the difference. Use 85-95% for photos and you are fine.
Does Markdown keep transparency?
Markdown is only a text wrapper around the image data, so transparency depends on the image format inside it.
Are my files uploaded?
Never. Everything runs in your browser. Your files never leave your device. Open DevTools Network tab while processing — you will see no upload request.
Can I convert many files at once?
Yes, up to 20 files at once. Download them individually or all together as a ZIP.
Does the converter strip metadata?
Yes. Browsers do not pass EXIF data through a canvas, so GPS, camera model and dates are removed on every conversion. That is good for privacy.
Is it free?
Yes. No credits, no daily cap, no account, no watermark. The practical limit is your device memory.
Does GitHub support data URI images in Markdown?
No. GitHub strips data URIs for security. Use a relative image path or a hosted URL instead. GitLab has similar restrictions.
Your files never leave your device
No upload, no account, no tracking. Everything happens in your browser using the Canvas API and WebAssembly. You can confirm this in your browser's DevTools Network tab while the tool runs — no request carries your file. See why ToolDeck is different.