Open an Adobe Illustrator (.ai) file without Illustrator
A printer, a designer or a client sent you a logo or a poster as an .ai file, and you have no Illustrator subscription, or you are on a phone or a Chromebook. Drop it here: every artboard is drawn sharply, with zoom and pan, thumbnails, its layers, the fonts it uses (and whether they are embedded), its colours, and a button to save a page as PNG.
The file is read on your device by this tab. It is not uploaded, and nothing in it is followed or run.
What it shows
- Every artboard, sharp at any zoom. Since Illustrator CS4 a document can hold many artboards; each one is a page here, drawn from the vector data, not from a preview picture. Each zoom step redraws only the part you see, so a 0.25 pt hairline or 4 pt small print stays crisp at 3,000 %. Drag to move, pinch or scroll to zoom, Fit to see the whole artboard, 100 % for actual size.
- Thumbnails of all artboards beside the drawing; tap one to open it.
- Layers. Illustrator writes its top-level layers into the file as PDF layers (optional content). They are listed with a switch each, and a layer that was hidden when the file was saved starts hidden, as in Illustrator.
- Fonts, embedded or missing. Every font the artboards use, with its type (OpenType, Type 1, TrueType) and whether the file carries it. A font that is not embedded is drawn here with a stand-in and marked, which is exactly the check a print shop does before it accepts a file. Illustrator’s own font list (with the font file names on the computer that saved it) is shown too when the file has one. A logo with its lettering converted to outlines needs no font at all, and the page says so.
- Document info. Which Illustrator saved it (for example “Illustrator CS3 (version 13)” or “Illustrator 2025 (version 29)”), title, author, dates, each artboard’s size in inches, millimetres and points (named when it is A4, US Letter, Tabloid and so on), the colour mode (RGB or CMYK), the process and spot colours used, the print plates and the named swatches with their values.
- Save page as PNG at 72, 150 or 300 dpi, on white or on a transparent background, with hidden layers left out.
Why your browser will not open an .ai file
Since Illustrator 9 (2000), an .ai file saved with the default “Create PDF Compatible File” option is a PDF: the first bytes are %PDF-, each artboard is a normal PDF page, and Illustrator’s own editing data (sublayers, live effects, symbols, the undo-able construction of the artwork) rides along in extra streams marked /AIMetaData and AIPrivateData, which PDF readers ignore. A browser decides what to do with a local file from its extension, not its bytes: we opened a PDF-compatible .ai by its file path in Chrome 150, and the browser aborted it as a download; the same bytes renamed to .pdf opened in Chrome’s built-in PDF viewer. So renaming a copy to .pdf works too. This page adds what the rename does not give you: the artboard list, the layers, the font check, the colours and swatches, and the PNG export.
For example, a CS3 poster from a print shop opens here as “Illustrator CS3 (version 13) artwork: 1 artboard, 14 × 17 in (355.6 × 431.8 mm)”, CMYK, with three spot colours (J03-OXFORD, J31-RED, K81-HARBOR BLUE) and one hidden layer.
What this cannot do
- Draw a file saved without “Create PDF Compatible File”. With that option off, the PDF part holds only Adobe’s one-page notice (“This is an Adobe Illustrator File that was saved without PDF Content”) and the artwork exists only in Illustrator’s private, compressed, unpublished data. Nothing but Illustrator can draw it. This page says so, shows the small thumbnail Illustrator keeps in the metadata when there is one, and lists what the metadata says; the fix is to re-save it from Illustrator with the option ticked.
- Draw PostScript-era .ai files. Illustrator 8 and earlier (and later versions saving as “Illustrator 8” or older) wrote .ai files as PostScript that calls Adobe procedure sets not included in the file. The header is read and shown (creator, size, colours, fonts) with an explanation; the artwork needs Illustrator or CorelDRAW.
- Show exact print colours. CMYK and spot colours are converted to screen colours by PDF.js, so a Pantone spot shows as its alternate colour and overprint is not simulated. Use this to see the artwork and check its colours by name, not to proof a print run.
- Edit, or show what only Illustrator knows. It only reads. Artboard names, sublayers, symbols, live effects and appearance stacks live in Illustrator’s private data and are not shown; what is drawn is the PDF copy Illustrator saved, which is how the artwork looked when it was saved.
- Open protected or huge files. A password-protected file is refused. Files over 500 MB are not opened, and a phone can run out of memory well below that with very large embedded photos.
- Old browsers. The PDF renderer is PDF.js 6.3 (Apache-2.0, served from this site, in its build for older browsers). A browser too old to run it gets an error message instead of a drawing.