Build Stack
All ToolsGlossaryThe Developer Spaceshameel.net

Browse Tools

80 tools — free, fast, browser-only

Every tool developers reach for, in one place.

Format JSON, decode JWTs, generate UUIDs, convert colors, test regex — no signup, no tracking, nothing sent to a server.

Start with JSON FormatterBrowse All Tools
No data sent to servers
80+ tools
Works offline
No signup required

Developer News

Popular Tools

Browse all

JSON Formatter

Format, validate and minify JSON with syntax highlighting.

JSON ↔ YAML

Convert between JSON and YAML instantly — two-way.

JSON ↔ CSV

Convert JSON arrays to CSV and CSV back to JSON.

JSON Escape / Unescape

Escape special characters for JSON strings and unescape them back.

JSON Schema Generator

Paste JSON and auto-generate a JSON Schema (Draft 2020-12).

XML Formatter

Format, validate and minify XML documents.

HTML Formatter

Prettify and minify HTML markup.

SQL Formatter

Format SQL queries for MySQL, PostgreSQL, SQLite, T-SQL and BigQuery.

GraphQL Query Formatter

Format and minify GraphQL queries, mutations, subscriptions, fragments and schema definitions.

Looking for something specific?

Every tool is organized in the searchable tree on the leftside panel — search by name, tag, or browse category by category.

Open the full tool index
Build Stack

Every tool developers reach for, in one place.

Categories

  • Formatters & Converters
  • Generators
  • Security & Crypto
  • Network & Web
  • Text & Strings
  • Numbers & Math
  • Design & CSS
  • Reference & Lookups

Popular Tools

  • JSON Formatter
  • JSON ↔ YAML
  • JSON ↔ CSV
  • JSON Escape / Unescape
  • JSON Schema Generator
  • XML Formatter

Site

  • Home
  • All Tools
  • Glossary
© 2026 Build Stack. All tools run in your browser — nothing is sent to a server.buildstack.tools