Do I need an account?
No. The current tools do not require accounts, signups, payments, or cloud history.
All tools
Browse every local-first tool. Filter by category or search by name; the useful content remains indexable.
Unix Timestamp Converter
Convert Unix timestamps in seconds or milliseconds to UTC, local time, and ISO dates.
CSV to JSON Converter
Convert CSV into structured JSON with delimiter detection, header rows, and pretty output.
URL Encoder/Decoder + Query Parser
Encode URL components, decode percent-encoded text, and parse query parameters.
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to UTF-8 safely in your browser.
UTM Campaign URL Builder
Build clean campaign URLs with source, medium, campaign, term, and content parameters.
JSON Formatter/Validator
Format, minify, and validate JSON with calm parse errors and copy-ready output.
Word/Character Counter with Reading Time
Count words, characters, sentences, paragraphs, reading time, and keyword density.
Developer, marketing, and writing tools
WebMultitool groups utilities into practical buckets. Developer tools cover timestamps, JSON, CSV, URLs, and Base64. Marketing tools help build campaign links. Writing tools count words, characters, and reading time.
Each tool has an indexable page with examples, FAQs, related tools, and clear privacy notes. For background workflows, browse the guides.
Is my tool input uploaded?
No. Tools run client-side in your browser unless a future tool clearly states otherwise.
Can I use these tools on mobile?
Yes. The layout is mobile-first, and primary controls are sized for touch.