CodingFormatter

Formatters

JSON Formatter XML Formatter HTML Formatter SQL Formatter HTML Beautifier View all →

Validators

YAML Validator JavaScript Validator Regex Tester JSON Path Evaluator XPath Evaluator HTML Validator Redirection Checker Link Checker JSONPath Finder Diff Checker View all →

Converters

CSV to JSON JSON to YAML YAML to JSON JSON to Protobuf JSON to Java JSON to XML JSON to PHP JSON to C# XML to XSD XML to YAML XML to JSON SQL to MongoDB INI to JSON INI to XML INI to YAML CSV to XML CSV to YAML CSV to SQL Image to Data URI Data URI to Image RGB to Hex Hex to RGB Epoch Converter IDN Converter View all →

Encoders & Utilities

Base64 Encoder Base64 Decoder JWT Decoder HAR Sanitizer HTML Encoder / Decoder JavaScript String Escaper / Unescaper XML String Escaper / Unescaper SVG Viewer View all →

AI & LLM Tools

LLM Token Counter Context Window Calculator Prompt Diff Checker LLM JSON Schema Validator Function Calling Schema Generator Prompt Template Linter Embedding Cosine Similarity Calculator Prompt Minifier View all →

Encoders & Utilities

Encode and decode Base64 with full UTF-8 support, inspect JWT headers and payloads without verifying signatures, redact secrets from HAR archives, escape or unescape HTML/JavaScript/XML strings, and preview SVG markup safely—all without uploading tokens or traces.

Encode text to Base64 with full UTF-8 support.

Decode Base64 to UTF-8 text safely in your browser.

Decode JWT header and payload - never sent to a server.

Redact secrets from HAR archives before sharing.

HTML Encoder / Decoder

Encode or decode HTML entities in your browser.

JavaScript String Escaper / Unescaper

Escape or unescape JavaScript string contents.

XML String Escaper / Unescaper

Escape or unescape XML special characters.

Preview SVG markup safely in your browser.

Frequently Asked Questions

Is Base64 encryption?

No—it is encoding only and offers no confidentiality.

Does the JWT decoder verify signatures?

No. It decodes claims for debugging only and states that clearly on the tool page.

When should I use HAR Sanitizer?

Before sharing network captures. It helps redact cookies, auth headers, and other secrets while you stay in-browser.