ASCII vs UTF-8: Character Encoding Differences Explained
ASCII covers 128 characters; UTF-8 encodes all 1.1 million Unicode points using 1–4 bytes. UTF-8 is backward-compatible with ASCII and universally preferred.
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Tags: encoding, unicode, developer-tools
ASCII vs UTF-8: Character Encoding Differences Explained If you've ever seen a file open with garbled symbols, debugged a string that silently lost characters, or wondered why in Python 3 but as bytes, you've already felt the difference between ASCII and UTF-8. This article explains exactly what that difference is, why it matters, and why UTF-8 became the dominant encoding on the web. --- What ASCII Actually Is ASCII stands for American Standard Code for Information Interchange, published in 1963. It maps 128 characters to 7-bit integers (0–127). Those 128 characters include: 32 control characters (0–31): non-printable characters like (0), (9), (10), (13), (27), (127) 95 printable characters (32–126): space, digits 0–9, uppercase A–Z, lowercase a–z, and common punctuation The key insight:…
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