A focused set of developer utilities available from the VS Code Activity Bar and Command Palette.
AES Encrypt / Decrypt
- AES-128, AES-192, and AES-256
- CBC, CFB, CTR, OFB, and ECB modes
- PKCS#7, ISO 9797-1, ANSI X9.23, ISO 10126, zero, and no padding
- PBKDF2, OpenSSL-compatible EvpKDF, or explicit key/IV material
- UTF-8, hexadecimal, and Base64 input/output
- Text, file, and HTTP/HTTPS URL input
- OpenSSL
Salted__ support for derived keys
URL content is fetched only when you explicitly select URL input. AES input is limited to 10 MB.
Base64 Encode/Decode
- Encode text or files
- Decode validated Base64 input
- Copy output to the clipboard
Base64 input is limited to 10 MB.
JWT Debugger
- Decode Base64URL header and payload data
- Inspect the encoded signature segment
- Check a numeric
exp claim for expiration
The debugger does not verify JWT signatures and does not establish that a token is trustworthy.
UUID Generator
- UUID v1, v4, and v7
- Null UUID
- Bulk generation of up to 1,000 values
Format Text
Escape and unescape JSON-style control sequences, quotes, slashes, and Unicode escapes.
- Format or minify JSON and XML
- Apply basic formatting to common SQL statements
- Configurable indentation
Data Converter
Convert JSON, YAML, XML, CSV, and RAML input to JSON, YAML, or XML. Conversion input is limited to 10 MB, and circular YAML aliases are rejected.
Data Visualizer
- Visualize JSON, YAML, XML, CSV, and RAML as an interactive graph
- Open from the sidebar or from a supported editor
- Pan, zoom, collapse nodes, switch themes, and export SVG
- Render guard for graphs larger than 1,500 nodes
- Validate and decode PEM X.509 certificates
- Generate quoted POSIX
keytool export commands
- Generate quoted POSIX OpenSSL PKCS#12 commands without collecting passwords or private-key contents
- Scan folders for PEM or DER X.509 certificate expiry information
The expiry scanner supports .crt, .cer, .cert, .pem, .der, .ca-bundle, .ca, and .bundle files.
Privacy
Tool input is processed in the extension host. The extension does not send analytics or tool content to a service. The only network operation is the explicit HTTP/HTTPS fetch in the AES tool's URL input mode.
The Developer Utilities Activity Bar view is configurable:
- Choose which tools are visible.
- Select compact, simple, comfortable, or icon-only layouts.
- Reset visibility and layout preferences to their defaults.
AES, Base64, JWT, UUID, Format Text, and Data Formatter are visible by default. Other tools can be enabled from Developer Utilities: Configure Sidebar.
Requirements
Development
npm install
npm run compile-tests
npm run lint
npm test
npm run package
npm run package:vsix
npm run package:vsix runs the production build through the extension's vscode:prepublish hook before creating the VSIX.
Support
Report defects and feature requests in the GitHub issue tracker.
See CHANGELOG.md for release notes.
