JavaScript Tools

Productivity

JSTools.Space is a growing collection of privacy-first online developer tools for everyday programming, testing, debugging, writing, and data work.

About JavaScript Tools

JSTools.Space is a web-based collection of developer utilities covering formatting, encoding, conversion, and test-data tasks. The site organizes tools into categories including JSON/HTML/XML/SQL formatters, CSS tools, text tools, a Markdown suite with export options to formats like Word, PDF, Notion, Jira, Confluence, and Slack, Base64 encoding/decoding for various file types, security and authentication utilities such as password and API key generators, hash generators (MD5, SHA, Bcrypt, Argon2), AES encryption/decryption, data converters, number base converters, unit converters, data validation tools (JSONPath, XPath, JSON Schema, CSV), web and accessibility checkers, and general developer utilities like a regex tester, cron expression generator, and gitignore generator.

Most processing runs directly in the browser, without requiring an account, file uploads, or project setup. The site is intended for developers who need to complete small, one-off formatting, conversion, encoding, or debugging tasks during a normal workday without switching to a full development environment.

The site also includes a blog with longer notes and explanations related to the tools, and supports multiple languages.

Key features

100+ browser-based developer utilities across formatting, encoding, and conversion
JSON, HTML, XML, CSS, and SQL formatters and validators
Security and authentication generators including passwords, JWT secrets, UUIDs, and hash functions
Base64 encoding/decoding for text, files, images, audio, and video
Markdown conversion to HTML, PDF, Word, Notion, Jira, Confluence, and other formats
Most processing happens locally in the browser without uploading files or creating an account

Frequently asked questions

Do I need an account to use JSTools.Space?

No, there are no accounts, projects, or dashboards to set up. You open a tool, complete the task, and move on.

Is my data uploaded to a server?

Most processing happens directly in your browser, so input generally isn't sent to a server.

What categories of tools are available?

The site offers formatters, CSS tools, text tools, Markdown converters, encoders and crypto utilities, Base64 tools, security and authentication generators, data converters, number converters, unit converters, data validation tools, web and accessibility tools, and general developer utilities.

Can I use it for security-related tasks like generating secrets or hashes?

Yes, it includes generators for passwords, passphrases, API keys, JWT secrets, TOTP secrets, salts, and hash functions like SHA, Bcrypt, and Argon2.

Is there documentation or written guidance beyond the tools?

Yes, the site has a blog with longer notes and practical explanations.

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