ToolForge
Free Online Tools That Just Work
Fast browser-based utilities for developers, creators, and everyday tasks. Edit JSON, decode JWTs, convert units, calculate loans, and more — private by default, no account required.
Tip: tap the search icon in the header to find tools quickly.
Popular tools
The utilities people open most often.
JSON Editor
Edit, format, repair, query, compare, and explore JSON in text, tree, and table modes.
JSON Formatter
Format, minify, and validate JSON in your browser.
JSON Validator
Check whether your JSON is valid and locate errors.
JSON to CSV
Convert a JSON array into CSV for spreadsheets.
Base64 Encoder / Decoder
Encode and decode Base64 text locally.
UUID Generator
Generate one or many UUID v4 identifiers.
JWT Decoder
Decode JWT header and payload locally — no verification.
Regex Tester
Test regular expressions against sample text.
Timestamp Converter
Convert Unix timestamps to dates and back.
Word Counter
Count words, sentences, paragraphs, and more.
Percentage Calculator
Calculate percentages, ratios, and percent change.
Unit Converter
Convert length, weight, temperature, and more.
Loan Calculator
Estimate monthly payments for a fixed-rate loan.
Tool categories
Jump straight to the kind of utility you need.
Developer Tools
JSON, encoding, JWT, regex, UUIDs, and other utilities for builders.
Text Tools
Count words, change case, sort lines, and clean up text quickly.
Converters
Convert between formats, encodings, timestamps, and units.
Calculators
Percentages, loans, ages, and everyday number helpers.
Date & Time
Timestamps, age, and date difference utilities.
Recently added
Fresh utilities added to the collection.
JSON Editor
Edit, format, repair, query, compare, and explore JSON in text, tree, and table modes.
Loan Calculator
Estimate monthly payments for a fixed-rate loan.
Unit Converter
Convert length, weight, temperature, and more.
Date Difference Calculator
Find the span between two dates.
Age Calculator
Calculate exact age in years, months, and days.
Percentage Calculator
Calculate percentages, ratios, and percent change.
Why ToolForge?
Most “free online tools” sites feel noisy, slow, or untrustworthy. ToolForge is built as a serious utility platform: polished UX, meaningful explanations, strong SEO, and client-side privacy for sensitive work.
- Local by default — developer and text tools process data in your browser.
- Genuinely useful — every tool has real features, clear errors, and explanatory content.
- 21 focused tools — not hundreds of thin keyword pages.
FAQ
Are ToolForge tools really free?
Yes. V1 tools are free to use in your browser with no account required.
Do you upload my data?
Sensitive developer and text tools process input locally in your browser. We do not need your content to make the tools work.
Do I need to create an account?
No. There is no authentication in V1 — open a tool and start working.
Will there be ads or premium tools later?
Possibly. The architecture is ready for ethical ads and premium features, but the core utilities stay focused on usefulness and privacy.