JSON Formatter
Format, minify, validate JSON in real time, with common error guidance.
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Free Developer Utilities
Fast, no-signup developer tools for everyday debugging and data cleanup. Format JSON, catch syntax errors, minify payloads, and encode or decode Base64 without sending your input to a backend.
DevKDP favors small tools with clear explanations over large dashboards. Each page includes practical notes about safe usage, common mistakes, and where browser-only utilities are not enough.
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Base64 Encoder
Encode and decode text, with standard and URL-safe Base64 variants.
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Built for quick checks, not data storage
Developer utilities often handle logs, API payloads, configuration snippets, and copied command output. The active tools on DevKDP run in the browser, so ordinary formatting and encoding tasks can be completed without creating an account or uploading the input to a remote formatter.
Browser-only tools still require judgment. Do not paste production secrets, private keys, customer records, or regulated data into any website unless your team has approved that workflow. For sensitive debugging, prefer local command-line tools or a controlled internal environment.
What the current tools cover
- Pretty-print JSON to make nested objects and arrays readable.
- Minify JSON before copying a compact payload into tests or fixtures.
- Decode Base64 to inspect text payloads and encode text for transport-safe examples.
- Compare standard Base64 and URL-safe Base64 when a value needs to move through links or query strings.
About this site
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