Base64 for Files: Data URIs, Binary Transport & the 33% Overhead
What types of files you can send as Base64, how much Base64 size overhead costs, when to use data URIs, and Base64 vs binary for storing and sharing documents.
Read more →All articles about web-development: 14 practical guides and tutorials from our free, privacy-first online tools.
What types of files you can send as Base64, how much Base64 size overhead costs, when to use data URIs, and Base64 vs binary for storing and sharing documents.
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Should you minify or prettify your JSON? Learn what each does, the size vs readability trade-off, why minifying never changes your data, and which to use when.
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The six JSON value types per RFC 8259 — object, array, string, number, boolean, and null — with valid vs invalid examples and the type mistakes that break APIs.
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Learn how to format, minify, and validate JSON online: choosing indentation, what validation catches, and how to fix trailing commas, single quotes, and BOM errors.
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How numbers work in JSON per RFC 8259: the exact grammar, one number type with no int/float split, no NaN or Infinity, and IEEE 754 precision pitfalls beyond 2^53.
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Standard Base64 uses +, / and = that break URLs, JWTs and filenames. Learn the url safe base64 vs standard base64 difference and how to fix decode errors.
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The complete RFC 8259 rules for JSON strings: which characters must be escaped, the backslash escapes, \uXXXX unicode escapes, surrogate pairs, and common mistakes.
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How JSON objects must be written per RFC 8259: names are quoted strings, strings use double quotes, the six structural characters, trailing commas, and worked examples.
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Learn how Base64 encoding works, why it exists, its URL-safe and MIME variants, common use cases, size overhead, and common security misconceptions.
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Practical JSON API best practices: response envelopes, naming conventions, error formats, pagination, versioning, security, and performance for REST APIs.
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Practical guide to Base64 in web development covering data URIs, JWT tokens, HTTP Basic Auth, browser APIs, file encoding for APIs, and common pitfalls.
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Learn how to convert data between JSON, YAML, CSV, and XML formats. Understand conversion challenges, data loss risks, and best practices for each format.
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