Frequently asked questions
Everything you need to know about QuickToolsFor.Me's free, client-side developer utilities.
General
Is QuickToolsFor.Me free? ▾
Yes, completely free. No account, no subscription, no hidden fees.
Does QuickToolsFor.Me send my data to a server? ▾
No. Every tool on QuickToolsFor.Me runs entirely in your browser using JavaScript. Your data never leaves your device.
Do the tools work offline? ▾
After the page loads, all tools work offline. There are no server calls required to use any tool.
JSON Formatter
How do I format JSON online for free? ▾
Paste your JSON into the JSON Formatter and it instantly pretty-prints it with proper indentation. No sign-up, no file upload — it runs entirely in your browser.
How do I validate JSON without installing anything? ▾
The JSON Formatter validates your JSON as you type, highlighting syntax errors with the exact line number. Nothing is sent to a server.
How do I minify JSON to reduce its size? ▾
Use the Minify option in the JSON Formatter to strip all whitespace and produce the most compact valid JSON string.
Base64
How do I encode text to Base64 online? ▾
Paste your text into the Base64 tool and click Encode. The result is a Base64 string you can copy immediately. Processing is 100% client-side.
How do I decode a Base64 string? ▾
Paste the Base64 string into the Base64 tool and click Decode to get the original text back.
What is the difference between standard Base64 and URL-safe Base64? ▾
Standard Base64 uses + and / characters which are special in URLs. URL-safe Base64 replaces these with - and _ so the encoded string can be used safely in URLs and filenames. Both variants are supported.
UUID Generator
How do I generate a UUID online? ▾
The UUID Generator creates RFC 4122 version 4 UUIDs instantly in your browser. Click Generate and copy — no network request is made.
How do I generate multiple UUIDs at once? ▾
The UUID Generator supports bulk generation. Set the quantity and all UUIDs are generated at once, ready to copy as a list.
Are the generated UUIDs truly random? ▾
Yes. UUIDs are generated using the browser's built-in crypto.randomUUID() (or crypto.getRandomValues() fallback), which is a cryptographically secure random number generator.
URL Encoder / Decoder
How do I URL-encode a string online? ▾
Paste your string into the URL Encoder and it percent-encodes any special characters so the string is safe to use inside a URL. No data leaves your browser.
How do I decode a percent-encoded URL? ▾
Paste the encoded URL or string into the URL Encoder / Decoder and click Decode to get the human-readable version back.
What is the difference between encodeURI and encodeURIComponent? ▾
encodeURI encodes a full URL but leaves characters like /, ?, and & intact. encodeURIComponent is stricter and encodes those too, making it suitable for encoding individual query parameter values. Both modes are supported.
Mortgage Calculator
How do I calculate my monthly mortgage payment? ▾
Enter your loan amount (principal), annual interest rate, and loan term in years into the Mortgage Calculator. It instantly calculates your monthly payment and shows the full amortization breakdown.
How much interest will I pay over the life of my mortgage? ▾
The Mortgage Calculator shows your total interest paid alongside the total amount repaid, so you can see the full cost of the loan at a glance.
What is an amortization schedule? ▾
An amortization schedule shows how each monthly payment is split between paying off the principal (the original loan amount) and paying interest. Early payments are mostly interest; over time, more of each payment reduces the principal. A full amortization table is generated for you.