Your browser
is the server.
Fast, privacy-conscious tools with clear labels showing when your data stays in the browser and when a server is required.
Browse Toolsor press ⌘K
$ speedytools scan --processing
✓ 40+ tools scanned
✓ Browser-only tools identified
✓ Server use disclosed
// Know before you paste.
JSON Formatter
Formatted JSON will appear here...JSON processing runs in your browser — no data sent anywhereFull JSON Formatter
K
How your data is processed:Browser onlyServer requiredOptional server
Popular
DeveloperBuild & Debug26
JavaScript to JSON
Convert JavaScript object literals to valid JSON
Browser only
JSON Merge
Merge two JSON objects with deep or shallow strategies
Browser only
Unix Timestamp Converter
Convert between Unix timestamps and human dates
Browser only
Collaborative Code Editor
Real-time code editing for pair programming and interviews
Server required
ContentCreate & Convert14
AIAI-Powered4
Prompt Manager
Save and organize your AI prompts
Optional server
Text Summarizer
Summarize long texts and extract key points
Browser only
Sentiment Analyzer
Analyze sentiment of text (positive/negative/neutral)
Browser only
Prompt Template Library
Curated AI prompt templates for ChatGPT and Claude
Browser only