Daily Developer Tools

Free, browser-based utilities for everyday developer workflows

Use cases Press Ctrl + K for quick search.

Tools

Home

Comparators

List Comparator
Text Diff & Compare

Converters

JSON <-> CSV Converter
JSON <-> YAML Converter

Formatters

JSON Formatter & Validator
YAML Validator

Data & Query

CSV Viewer / Cleaner
Data & Query Tools
JSON Diff (Order-insensitive)
JSON Patch & Pointer
JSON Schema Validator
JSONPath Tester
Schema Inspector (JSON)
SQL Formatter (Basic)
SQL IN Clause Builder / Chunker
SQL Join Builder (Visual)

API & HTTP

API & HTTP Tools
Certificate & PEM Tools
cURL Converter
HAR Sanitizer & Replay Packager
HTTP Headers Parser & Builder
JSON -> cURL / Postman Snippet Generator
JWT & OAuth Security Toolkit
OpenAPI -> Postman Collection Exporter
OpenAPI Snippet Extractor
URL Parser & Query Builder

Testing & Debugging

Regex Generator & Tester

Encoders & Decoders

Base64 Encoder & Decoder
JWT Decoder
URL & Payload Encoding Suite
URL Encoder & Decoder

Generators & Utilities

Hash Generator
Line Tools (Clean & Transform)
Lorem Ipsum & Slug Tools
Password & Token Generator
Timestamp Converter
UUID Generator

DevOps & Config

.env <-> Properties <-> JSON Converter
Cron Builder
Cron Expression Analyzer
DevOps & Config Tools

Press Ctrl + K for quick search.

Certificate & PEM Tools

Decode X.509 certs, inspect CSRs, and split PEM chains locally.

Mode

Sanitize bundle (drop private keys)

Certificate input

Summary

Raw JSON

CSR input

Summary

Raw JSON

PEM bundle input

Blocks

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