24Toolkit offers free browser-based tools for developers and creators: JSON Beautifier, Image Compressor, Base64 Encoder, QR Generator, AI Text Studio, Password Generator, and 70+ more. All tools run locally in your browser — your data never leaves your device.
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Understand how image compression works: lossy vs lossless algorithms, when to use PNG vs WebP vs AVIF, and which tools give the best size-to-quality ratio.