Beginner Path
Developer Basics, JSON, YAML, XML, HTTP, REST APIs, JWT, Regex, Markdown, and Diff Tools.
Start pathDeveloper Portal
Your DevPaste command center
A cohesive dashboard for tools, learning, documentation, preferences, releases, and product feedback.
20 results
ToolEncoding ToolkitEncode and decode Base64, Base64URL, URLs, HTML entities, Unicode, hex, binary, ASCII, and UTF-8 locally.ToolJSON ToolkitFormat, validate, visualize, query, diff, flatten, convert, and generate types from JSON locally.ToolJSON VisualizerExplore JSON as an interactive tree with search, JSONPath copying, and structure statistics.ToolJSON Code GeneratorGenerate typed models, schemas, and structs from JSON across popular languages.ToolJSONPath TesterEvaluate JSONPath expressions against JSON and inspect matched results.ToolJSON Schema ValidatorValidate JSON data against JSON Schema and inspect detailed Ajv errors.ToolJSON FlattenFlatten nested JSON into path keys or unflatten path-key objects back into nested JSON.ToolcURL ParserParse cURL commands and convert them into client-side HTTP code snippets.ToolAPI PlaygroundBuild, import, and export API requests locally without executing them.ToolAPI Request BuilderBuild HTTP requests and generate client code without sending the request.ToolHTTP Headers InspectorParse and analyze HTTP request/response headers, cookies, and metadata locally.ToolCSV ViewerConvert CSV to JSON or preview delimited data as a table.
Recent Tools
Open a tool to start building your recent list.
Favorite Tools
Favorite tools from any tool page to pin them here.
Recommended Tools
Generated from your recent and favorite tools, with registry-backed fallbacks.
textMarkdown StudioEdit, preview, analyze, convert, and build Markdown documents locally with sanitized GitHub-Flavored Markdown preview.developerDiff StudioCompare text, JSON, YAML, XML, and Markdown locally with semantic reports and exports.networkAPI PlaygroundBuild, import, and export API requests locally without executing them.developerRegex StudioTest, replace, explain, and reference JavaScript regular expressions locally.dataJSON ToolkitFormat, validate, visualize, query, diff, flatten, convert, and generate types from JSON locally.securityJWT Inspector ProDecode, verify, generate, compare, audit, and timeline JWTs locally in the browser.
Popular Tools
Common starting points across DevPaste workflows.
formattingJSONFormat, minify, and inspect structured JSON payloads.encodingJWTDecode JSON Web Token header and payload data locally.encodingBase64Decode Base64 encoded text into readable output.formattingYAMLFormat YAML and convert YAML documents to JSON.developerRegex StudioTest, replace, explain, and reference JavaScript regular expressions locally.developerDiff ViewerCompare original and modified text with Monaco inline or side-by-side diffs.
Recently Updated
Recently expanded workspaces and platform surfaces.
UpdatedMarkdown StudioEdit, preview, analyze, convert, and build Markdown documents locally with sanitized GitHub-Flavored Markdown preview.UpdatedDiff StudioCompare text, JSON, YAML, XML, and Markdown locally with semantic reports and exports.UpdatedAPI PlaygroundBuild, import, and export API requests locally without executing them.UpdatedRegex StudioTest, replace, explain, and reference JavaScript regular expressions locally.UpdatedJSON ToolkitFormat, validate, visualize, query, diff, flatten, convert, and generate types from JSON locally.UpdatedJWT Inspector ProDecode, verify, generate, compare, audit, and timeline JWTs locally in the browser.
Tool Explorer
Filter tools by search, category, collection, tag, difficulty, favorites, and recent usage.
BeginnerEncoding ToolkitEncode and decode Base64, Base64URL, URLs, HTML entities, Unicode, hex, binary, ASCII, and UTF-8 locally.AdvancedJSON ToolkitFormat, validate, visualize, query, diff, flatten, convert, and generate types from JSON locally.IntermediateJSON VisualizerExplore JSON as an interactive tree with search, JSONPath copying, and structure statistics.IntermediateJSON Code GeneratorGenerate typed models, schemas, and structs from JSON across popular languages.IntermediateJSONPath TesterEvaluate JSONPath expressions against JSON and inspect matched results.AdvancedJSON Schema ValidatorValidate JSON data against JSON Schema and inspect detailed Ajv errors.IntermediateJSON FlattenFlatten nested JSON into path keys or unflatten path-key objects back into nested JSON.IntermediatecURL ParserParse cURL commands and convert them into client-side HTTP code snippets.IntermediateAPI PlaygroundBuild, import, and export API requests locally without executing them.IntermediateAPI Request BuilderBuild HTTP requests and generate client code without sending the request.IntermediateHTTP Headers InspectorParse and analyze HTTP request/response headers, cookies, and metadata locally.IntermediateCSV ViewerConvert CSV to JSON or preview delimited data as a table.BeginnerMarkdown StudioEdit, preview, analyze, convert, and build Markdown documents locally with sanitized GitHub-Flavored Markdown preview.BeginnerMarkdown ToolsPreview Markdown or strip formatting to plain text.Advanced.env ToolsSort environment keys, convert to JSON, or mask secret values locally.IntermediateURL ToolsDecode, encode, and parse URLs or query strings.IntermediateUUID ToolsInspect UUID versions, normalize casing, and remove dashes.IntermediateUnix Timestamp ToolsConvert Unix timestamps to local, UTC, and ISO dates.
Learning
Roadmaps, progress, bookmarks, and recently viewed Learn articles.
Progress
0%
0 of 17 articles viewed on this device.
Bookmarks tracked: 0. Bookmark UI can be expanded later.
Intermediate Path
Move from formats into API design, request debugging, webhooks, URL handling, and SQL.
Start pathAdvanced Path
OAuth, JWT security, caching, rate limiting, webhooks, encoding versus encryption, diff algorithms, and regex performance.
Start pathDocumentation
Recently read, searchable, and popular documentation entry points.
Popular DocsEncoding ToolkitEncode and decode Base64, Base64URL, URLs, HTML entities, Unicode, hex, binary, ASCII, and UTF-8 locally.Popular DocsJSON ToolkitFormat, validate, visualize, query, diff, flatten, convert, and generate types from JSON locally.Popular DocsJSON VisualizerExplore JSON as an interactive tree with search, JSONPath copying, and structure statistics.Popular DocsJSON Code GeneratorGenerate typed models, schemas, and structs from JSON across popular languages.Popular DocsJSONPath TesterEvaluate JSONPath expressions against JSON and inspect matched results.Popular DocsJSON Schema ValidatorValidate JSON data against JSON Schema and inspect detailed Ajv errors.
Continue Learning
Pick up with core guides and newer learning paths.
BeginnerJSONLearn how JSON represents structured data for APIs, configs, and logs.BeginnerYAMLLearn YAML configuration syntax, indentation, and conversion tradeoffs.IntermediateJWTLearn JSON Web Token structure, claims, signatures, and safe inspection.BeginnerBase64Learn what Base64 encoding is, where it appears, and why it is not encryption.BeginnerHTTPLearn HTTP requests, responses, headers, methods, and local inspection.IntermediateRegexLearn regular expressions for matching, extracting, and replacing text.
Developer News
Placeholder for future platform announcements, ecosystem updates, and maintenance notes.
Keyboard Shortcuts
- Ctrl/Cmd + K: open command palette
- Tab / Shift+Tab: move between controls
- Escape: close dialogs and overlays
Tips & Tricks
- Start with Universal Workspace when you are not sure which tool fits.
- Use favorites to keep repeated workflows one click away.
- Open examples from Learn articles directly in tools through temporary handoff.
Settings
These controls model app-wide preferences and store only preference values in localStorage.
Local Storage Controls
Clear portal settings and local usage analytics. Tool content is not stored here.
Release Notes
0.9.0
Developer Portal and Learn Center
Unified dashboard, learning routes, documentation, and cross-tool navigation.
0.8.0
Markdown Studio and Diff Studio
Client-side document editing, sanitized previews, and semantic comparisons.
0.7.0
API Playground
Request building, importing, validation, preview, and export without sending traffic.
Upcoming Features
Upcoming areas include richer docs bookmarks, learning achievements, portal-wide command actions, expanded settings, and integrated release history.