File Converters
XML to JSON
Convert XML into JSON format.
Open ToolBase64 Tools
Base64 appears everywhere in developer workflows: tokens, data URLs, API payloads, and file conversions. It’s convenient because it turns bytes into text, but it can be hard to inspect quickly—especially when you’re dealing with long strings or embedded images.
DevToolDock’s Base64 tools help you encode and decode strings, preview Base64 images, and convert images to data URLs. The goal is simple: make Base64 troubleshooting fast, predictable, and easy to copy into your code or tickets.
Use the tools below to move between text, Base64 strings, and images without leaving your browser.
Remember: Base64 is an encoding, not encryption. It’s great for transport and embedding, but you should never treat it as secret. These tools are designed for debugging and day-to-day developer workflows, so you can quickly verify what a string contains and convert it into the format you need.
Tools included
File Converters
JSON to YAML
Convert JSON into YAML.
Open ToolFile Converters
YAML to JSON
Convert YAML into JSON.
Open ToolFile Converters
CSV to TSV
Convert CSV into TSV.
Open ToolFile Converters
TSV to CSV
Convert TSV into CSV.
Open ToolFile Converters
Base64 to Image
Preview Base64 image data as an image.
Open ToolFile Converters
Image to Base64
Convert an image file to Base64 (data URL).
Open ToolEncoding Tools
Base64 Encoder
Encode text to Base64.
Open ToolEncoding Tools
Base64 Decoder
Decode Base64 to text.
Open ToolEncoding Tools
HTML Encoder
Encode text to HTML entities.
Open ToolEncoding Tools
HTML Decoder
Decode HTML entities to text.
Open ToolFile Converters
Markdown to HTML
Convert Markdown into HTML.
Open ToolFile Converters
HTML to Markdown
Convert HTML into Markdown.
Open ToolFile Converters
JSON to TypeScript Interface
Generate TypeScript interfaces from JSON.
Open ToolCommon use cases
- Encode a string to Base64 for test fixtures or API payloads.
- Decode a Base64 string to quickly verify what a token segment contains.
- Convert an image to a Base64 data URL for HTML/CSS prototypes.
- Preview a Base64 image string to verify it isn’t corrupted.
- Troubleshoot JWT payloads by decoding Base64url segments (pair with /jwt-decoder).
Final thoughts
Base64 is an encoding, not encryption—decode it freely for debugging, but never assume it hides sensitive data. When working with tokens or auth flows, pair Base64 utilities with the JWT tools.
For more conversions and utilities, explore the broader catalog on /tools and /all-tools.
If you deal with Base64 often, bookmark the encoder/decoder and the image converters. That covers most real-world cases: token inspection, data URLs, and quick previews during debugging.