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Code images for documentation and slides

Choose PNG or SVG, check fonts and scale, and keep code readable when you share a snippet.

Content maintained by Toolars · Updated 2026-09-25

Choose an output for its destination

PNG fixes the rendered pixels and is usually the simpler choice for slides and chat. SVG can be resized without raster blur, but rendering depends on the viewer. Without an uploaded font, the SVG uses system fonts and may change on another computer. An accepted uploaded font is embedded in full; this increases file size and still requires viewer support. Test in the actual slide or document application.

Reproduce the export-scale comparison

Download the JavaScript code.txt sample from this guide, paste it into Code to Image, and generate at 1x. Note the dimensions, then change only the scale to 2x and generate again. Width and height each double, giving four times the PNG pixels. The code itself does not gain detail. Place both results at the same displayed width to compare. If 2x exceeds the export limit, shorten the snippet or reduce padding.

Check multilingual text and long lines

Try a short comment containing English and Chinese or Japanese. Use a font that includes every character and that you have permission to embed. Missing glyphs in an uploaded font stop generation. For system-font output, inspect the downloaded PNG and reopen the SVG on the destination device. Long lines are not a substitute for an explanation: split the example into focused snippets rather than shrinking the text until it cannot be read.

Review before sharing

Look at the output at its intended display size. Check indentation, punctuation, contrast, line numbers and any title. Keep secrets and private code out of public examples. The tool does not execute the snippet. Supply the source as text alongside the image; an image alone is not an accessible or copyable code sample. Clear the workspace after working with private material.

Maintenance and verification

Toolars maintains this guide and its linked tool. Report a mismatch between the instructions and the current output so it can be reviewed together.

The downloadable example below is a synthetic test input, not a customer case study. Keep the input and settings unchanged when reproducing it; compare the downloaded file with the stated checks, not only the preview.

The checks cover this example only. They do not certify every file, browser or destination application. Recheck after tool changes and test your own output before sharing.

Report a content or tool issue

Try a reproducible example

Toolars synthetic samples · updated 2026-09-13. These demonstrate the workflow, not real-photo quality, scanned-document quality or platform acceptance.

Paste the downloaded JavaScript sample into Code to Image and choose JavaScript. Generate a preview, then export PNG at 1× and 2×. Compare the reported dimensions with each download and inspect the long numeric string and indentation at 100% zoom. Export scale changes raster dimensions, not source precision. Without an embedded font, SVG appearance can vary across devices.

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Frequently asked questions

Should I export code images as PNG or SVG?
PNG fixes the rendered pixels and is the simpler choice for slides and chat. SVG resizes without raster blur, but without an uploaded font it renders with system fonts that change between computers—test the SVG in the actual destination application.
Does a 2x export make the code sharper?
No. Doubling the scale doubles width and height—four times the PNG pixels—but the code itself gains no detail. Generate at 1x and 2x, place both at the same displayed width, and you will see the trade is file size, not readability.
Are code images accessible to readers?
Not by themselves. An image alone cannot be copied or read by assistive technology, so supply the source text beside it, use a font that covers every character in the snippet, and keep secrets and private code out of shared examples.

Open Code to Image Converter

Choose PNG or SVG, check fonts and scale, and keep code readable when you share a snippet.

Open Code to Image Converter