Editing Base64 (section)

===Other applications===
[[File:35_mm_angle_of_view_vs_focal_length.svg|thumb|link={{filepath:35_mm_angle_of_view_vs_focal_length.svg}}|Example of an SVG file containing embedded JPEG images encoded in Base64<ref>&lt;image xlink:href="data:image/jpeg;base64,<code>JPEG contents encoded in Base64</code>" ... /&gt;</ref>]]
Base64 can be used in a variety of contexts:

* Base64 can be used to transmit and store text that might otherwise cause [[delimiter collision]]
* Base64 is used to encode character strings in [[LDAP Data Interchange Format]] files
* Base64 is often used to embed binary data in an [[XML]] file, using a syntax similar to <code><nowiki><data encoding="base64">…</data></nowiki></code> e.g. [[favicon]]s in [[Firefox]]'s exported <code>bookmarks.html</code>.
* Base64 is used to encode binary files such as images within scripts, to avoid depending on external files.
* Base64 can be used to embed [[PDF]] files in HTML pages.<ref>{{Cite web |title=Encode PDF (Portable Document Format) File (.pdf) to Base64 Data |url=https://base64.online/encoders/encode-pdf-to-base64?utm_campaign=og |access-date=2024-03-21 |website=base64.online |language=en}}</ref>
* The [[data URI scheme]] can use Base64 to represent file contents. For instance, background images and fonts can be specified in a [[CSS]] stylesheet file as <code>data:</code> URIs, instead of being supplied in separate files.
* Although not part of the official specification for the [[SVG]] format, some viewers can interpret Base64 when used for embedded elements, such as raster images inside SVG files.<ref>{{cite web|url=http://jsfiddle.net/MxHPq/|title=Edit fiddle |website=jsfiddle.net}}</ref>
* Base64 can be used to store/transmit relatively small amounts of binary data via a computer's text [[Clipboard (computing)|clipboard]] functionality, especially in cases where the information doesn't warrant being permanently saved or when information must be quickly sent between a wide variety of different, potentially incompatible programs. An example is the representation of the public keys of [[cryptocurrency]] recipients as Base64 encoded text strings, which can be easily copied and pasted into users' [[Cryptocurrency wallet|wallet software]]. 
* Binary data that must be quickly verified by humans as a safety mechanism, such as [[Checksum|file checksums]] or [[Public key fingerprint|key fingerprints]], is often represented in Base64 for easy checking, sometimes with additional formattings, such as separating each group of four characters in the representation of a [[Pretty Good Privacy|PGP]] key fingerprint with a space. 
* [[QR code]]s which contain binary data will sometimes store it encoded in Base64 rather than simply storing the raw binary data, as there is a stronger guarantee that all QR code readers will accurately decode text, as well as the fact that some devices will more readily save text from a QR code than potentially malicious binary data.