A Fast, Secure JSON Tool for Everyday Development
Modern applications run on JSON—API responses, configuration files, logs, and complex payloads all rely on it. But when JSON becomes deeply nested or slightly malformed, debugging it quickly turns into a painful experience. We built the EchoLog JSON Formatter to make working with JSON fast, safe, and frustration-free for developers.
Our JSON Formatter at jsonformatter.echologai.com is designed to be your go-to place for inspecting, validating, and cleaning up JSON, without worrying about data privacy or vendor lock-in.
100% Client-Side: Your Data Stays in the Browser
Many online formatters send your JSON to a remote server for processing. That is a deal-breaker if you are working with API keys, internal configurations, user data, or logs from production systems. The EchoLog JSON Formatter is intentionally built to avoid that risk.
- Secure client-side processing: All formatting, validation, and parsing runs locally in your browser using JavaScript—your JSON is never uploaded to our servers.
- No hidden APIs: We do not call any backend APIs for formatting or validation. Everything happens in the page you are already on.
- Great for sensitive data: Because nothing leaves your device, you can safely paste snippets from internal tools or staging environments.
Formatter, Validator, and Editor in One Place
The tool is more than just a “pretty printer.” It combines formatting, validation, and editing into a single, focused experience so you do not have to juggle multiple tabs or tools.
- Instant formatting: Paste raw JSON and convert it into a clean, indented structure in a single click.
- Syntax validation: The formatter highlights issues like missing commas, mismatched brackets, or stray quotes and helps you locate them quickly.
- File support: You can upload
.jsonor.txtfiles and download the formatted or minified result when you are done.
Built for Long Sessions and Real-World Workflows
Real debugging sessions are rarely “copy–paste once and done.” You tweak payloads, compare versions, and revisit the same JSON multiple times. The EchoLog JSON Formatter is tuned for that workflow.
- Auto-save in local storage: Your latest work is cached in the browser so you can refresh the page or come back later without losing your JSON.
- Interactive viewing: A tree-style view makes it easier to explore large or deeply nested objects by expanding and collapsing nodes.
- Dark mode and familiar editing: The editor is designed to feel close to a code editor with syntax highlighting and keyboard shortcuts, so it fits naturally into a developer’s workflow.
Frequently Asked Questions
Is the EchoLog JSON Formatter secure?
Yes. All JSON processing happens locally in your browser. We do not send your data to any server, store it, or log it. This makes the tool suitable for working with private API responses, configs, or internal logs. You can also clear your browser’s local storage at any time if you want to remove cached inputs.
Can I use it only for JSON formatting?
No—the tool is equally useful for validating JSON, exploring the structure of complex payloads, and preparing data before sending it to APIs or other systems. You can format, validate, and then copy the cleaned JSON back into your code or tools.
Will there be more developer tools from EchoLog?
Yes. In addition to the JSON Formatter and our EchoLog AI Voice Assistant extension, we are actively working on a protobuf-related compiler tool to simplify working with protocol buffers. Our long-term goal is to build a family of privacy-conscious tools that make both accessibility and developer workflows better.
If you have feedback or feature requests for the JSON Formatter, we would love to hear from you. Your input directly shapes what we build next.