IndieStartup

Base64 Encoder & Decoder

100% Free & Client-Side

Encode plain text or binary strings into Base64 format and decode Base64 back to text.

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Free 50+ Micro-SaaS Niche Blueprint & AI Prompt Vault (2026)

Get the free 5-Day Email Micro-Course + production-ready .cursorrules & .claudeconfig prompt files for Solo Founders.

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Complete AI developer system with a 35+ page guide, 50+ production .cursorrules & .windsurfrules, 30+ Claude CLI slash command scripts, 10 developer SOPs, and 8 checklists.

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Client-Side Privacy Guarantee

All data entered into Base64 Encoder & Decoder is processed locally inside your web browser using JavaScript. No tokens, passwords, JSON payloads, or text inputs are ever transmitted or stored on external servers.