Base64 Encoder / Decoder
Encode & decode text or files to Base64, URL-safe or standard.
✅ 100% free✅ No signup✅ Runs in your browser✅ No data sent to servers
Output
Why this tool survives the ChatGPT era
Copy-paste keys, JWTs, images to LLM prompts — Base64 still the universal wire format.
Frequently asked
URL-safe variant?
Yes — uses -_ instead of +/, no padding.
Ship all of this at scale with WBP Omni SEO Pro
Every generator on this page can auto-apply across thousands of WordPress URLs — schema, meta, hreflang, robots, llms.txt — with GEO, AEO and AIO built in.
See pricing →Related Converters tools
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Markdown to HTML
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H
HTML to Markdown
Convert HTML to Markdown for docs, blogs and LLM prompts.
J
JSON to CSV
Flatten nested JSON into CSV with dot-path headers.
C
CSV to JSON
Parse CSV to typed JSON with header inference and BOM stripping.
Y
YAML ↔ JSON
Bidirectional YAML ↔ JSON with schema-preserving comments.
U
URL Encoder / Decoder
Encode & decode URL components and full query strings.
Where teams ship this in production
Real sites using base64 encoder / decoder-style patterns for SEO growth.
shopify.com