Developer Tools
Use Berlvis Developer tools for quick data and debugging jobs without spinning up a full project. Format JSON, encode Base64, build UTMs, generate QR codes, hash files, and create strong passwords.
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Utilities for everyday debugging
Developer tools are built for the small jobs that interrupt deeper work: formatting data, checking encodings, creating tracking URLs, or validating a quick value.
Tools
JSON Formatter
Format, validate and beautify JSON without uploading.
Base64 Encoder/Decoder
Encode or decode Base64 without uploading.
UTM Builder
Build trackable URLs for Google Analytics.
CSV to JSON
Paste a CSV, get clean JSON records back instantly.
JSON to CSV
Turn a JSON array into a spreadsheet-ready CSV.
Markdown Editor & Preview
Write Markdown and see the formatted result instantly.
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FAQ
Can I format JSON?
Yes. JSON Formatter cleans and formats JSON so it is easier to read, copy, and inspect.
Can I generate secure passwords?
Yes. Password Generator uses browser crypto APIs to create strong random passwords on your device.