Free, browser-based utilities for everyday developer workflows

Use Cases

Real-world workflows, ready-to-run examples, and direct links to the right tool.

Browse all use cases

Convert JSON to CSV for Excel

Turn JSON arrays into Excel-ready CSV with headers. Fast, privacy-first conversion in your browser.

Primary tool: JSON to CSV Converter

Compare Two Email Lists

Find overlaps, unique contacts, and duplicates between two email lists in seconds.

Primary tool: List Comparator

Convert cURL to Fetch

Turn cURL commands into browser-ready fetch code for JavaScript apps.

Primary tool: cURL Converter

Format JSON for API Logs

Pretty-print and validate JSON logs for faster debugging and reviews.

Primary tool: JSON Formatter

Convert JSON to YAML for Kubernetes

Convert JSON manifests to YAML for Kubernetes, Helm, and DevOps workflows.

Primary tool: JSON <-> YAML Converter

Fix Base64 Encoding Errors

Decode, re-encode, and troubleshoot Base64 strings quickly and safely.

Primary tool: Base64 Encoder & Decoder

Diff Two Text Files

Compare two text files and highlight line-by-line differences.

Primary tool: Text Diff

Format SQL for Code Review

Format SQL queries with readable indentation for reviews and debugging.

Primary tool: SQL Formatter

Parse URL Query Parameters

Break down URLs into host, path, and query parameters for debugging and QA.

Primary tool: URL Parser

URL Encode Query Strings

Encode and decode query strings safely for tracking links and APIs.

Primary tool: URL Encoder