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Developer Tools
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25+ browser-based utilities for SQL, JSON, regex, QR codes, unit conversion and more — built on trusted Python packages.

SQL Converter JSON→YAML Regex QR Code UUID Units
25+
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15+
SQL Dialects
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SQL Tools

2 tools
SQL Dialect Converter
Convert between MySQL, PostgreSQL, Snowflake, BigQuery and 15+ dialects.
sqlglot
SQL Formatter
Beautify SQL with proper indentation, keyword casing and comment stripping.
sqlparse

Data Format Converters

4 tools
JSON → YAML
Convert JSON to YAML for Kubernetes, Docker and CI/CD configs.
PyYAML
YAML → JSON
Parse YAML config files and output clean, minified JSON.
PyYAML
XML → JSON
Transform XML documents to JSON for modern APIs and data pipelines.
xmltodict
Number Formatter
Format numbers as currency, words, ordinals, file sizes and relative time.
humanize

Dev & Code

4 tools
Regex Tester & Explainer
Test patterns with live match highlighting and position tracking.
re
Markdown Previewer
Write Markdown and see a live HTML preview with GFM support.
Markdown
Casing Converter
Convert between snake_case, camelCase, PascalCase and kebab-case.
stdlib
Developer Cheatsheets
Quick reference for Git, Docker, Linux, Python, Django and SQL.
reference

Generators

3 tools
QR Code Generator
Generate QR codes for URLs, text, WiFi and contacts. Download PNG.
qrcode
Barcode Generator
Create Code128, EAN-13, UPC-A barcodes. Download SVG or PNG.
python-barcode
UUID Generator
Generate UUID v4 identifiers for database keys, session IDs and APIs.
uuid

Time & Schedule

4 tools
Time Zone Converter
Convert timestamps between world time zones. Results from pendulum, arrow and dateutil.
pendulum · arrow
Date & Time Formatter
Format and parse dates with strftime, ISO 8601 and Unix timestamps.
arrow
Cron Scheduler
Build cron expressions visually and preview the next 5 run times.
croniter
Cron to Human
Paste any cron expression and get a plain-English description.
cron-descriptor

Converters & Utilities

5 tools
Unit Converter
Convert length, weight, temperature, area, volume and 100+ units.
pint
URL Info Extractor
Extract title, description and metadata from any URL automatically.
requests · bs4
URL Shortener
Shorten any long URL into a compact shareable link instantly.
pyshorteners
Document Processor
Convert PDF/DOCX to text, Markdown or other formats.
PyMuPDF · pypandoc
PDF Text Extractor
Upload any PDF to extract and analyze its text content automatically.
pdfplumber

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Frequently Asked Questions

Yes. All 25+ tools are completely free with no registration or payment required — ever.
No. All inputs are processed in server memory and immediately discarded. Nothing is stored, logged or shared.
Use the SQL Dialect Converter. Select MySQL as source, PostgreSQL as target, paste your query and click Convert. Powered by sqlglot for accurate function remapping.
MySQL, PostgreSQL, SQL Server (T-SQL), SQLite, BigQuery, Snowflake, Redshift, Databricks, Spark SQL, Hive, Presto, Trino, DuckDB, Oracle, ClickHouse and AWS Athena.
sqlglot (SQL conversion), sqlparse (formatting), PyYAML (YAML/JSON), xmltodict (XML), pint (units), croniter (cron), pendulum + arrow (time zones), qrcode (QR codes), python-barcode, uuid, pdfplumber, humanize, Markdown and more.