niftytools.dev
100% free · no signup · runs in your browser

Nifty little tools
for everyday tasks

A growing collection of free browser-based utilities. Fast, private, and zero-install.

Privacy first
Instant results
Always free
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01
Open

QR Code Generator

Generate QR codes from any URL or text. Customize colors and download as PNG.

freeinstantdownloadable
02
Open

JSON Formatter

Beautify, minify and validate JSON. Syntax highlighting with error detection.

validatebeautifyminify
03
Open

Base64 Encoder / Decoder

Encode text or files to Base64, or decode Base64 strings back to plain text.

encodedecodefiles
04
Open

Image Converter

Convert between PNG, JPG, and WebP formats instantly. Fully client-side.

pngjpgwebp
05
Open

Favicon Generator

Turn any image into a complete favicon set. Download all sizes instantly.

.ico16px32px180px
06
Open

YouTube Timestamp

Create a YouTube link that starts at a specific time. Share exact moments.

youtubesharetimestamp
07
Open

Password Generator

Generate strong, random passwords. Pick length and character types. Cryptographically secure.

securerandomcrypto
08
Open

URL Encoder / Decoder

Encode special characters in URLs or decode percent-encoded strings back to plain text.

encodedecode%20
09
Open

Color Converter

Convert colors between HEX, RGB, and HSL. Includes a live color picker and CSS snippet.

hexrgbhsl
10
Open

Text Case Converter

Convert text between UPPER CASE, lower case, camelCase, snake_case, kebab-case, and more.

camelCasesnake_casekebab
11
Open

Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. Fully client-side.

SHA-256SHA-512crypto
12
Open

Regex Tester

Test regular expressions in real time. Highlights all matches and shows capture groups.

regexmatchflags
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12
Free Tools
and growing
0
Data collected
privacy first
100%
Client-side
in your browser
Free
Always
no signup required
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Free Online Developer Tools — No Sign-Up Required

NiftyTools is a collection of fast, privacy-first browser utilities built for developers, designers, and anyone who works with data or code. Every tool runs entirely in your browser — nothing is sent to a server, nothing is stored, and no account is ever required. Open a tool, get your result, close the tab. That is it.

What Tools Are Available?

  • JSON Formatter & Validator — Prettify, minify, and validate JSON with real-time error detection. Paste any API response to instantly inspect its structure.
  • Base64 Encoder / Decoder — Encode text or files to Base64 and decode Base64 strings back to their original content. Supports data URIs for embedding images in HTML.
  • QR Code Generator — Create high-resolution QR codes for URLs, text, or contact details. Download as a PNG file with no watermark.
  • Image Converter — Convert images between PNG, JPG, and WebP formats directly in the browser using the Canvas API.
  • Favicon Generator — Resize any image into favicon-ready sizes (16px, 32px, 180px Apple Touch Icon) for use on any website.
  • Password Generator — Generate cryptographically secure random passwords using the Web Crypto API with configurable length and character sets.
  • URL Encoder / Decoder — Percent-encode and decode URLs and query string parameters to safely include special characters in requests.
  • Colour Converter — Convert colour values between HEX, RGB, HSL, and HSB formats with a live colour preview.
  • Text Case Converter — Transform text between camelCase, PascalCase, snake_case, kebab-case, UPPER CASE, Title Case, and more.
  • Hash Generator — Compute MD5, SHA-1, SHA-256, and SHA-512 hashes for any text string using the Web Crypto API.
  • Regex Tester — Test regular expressions against sample text with live match highlighting and support for all JavaScript flags.
  • YouTube Timestamp Generator — Create YouTube links that start playback at a specific time for sharing exact moments in long videos.

Why Use Browser-Based Tools?

Traditional online tools process your data on a remote server. That means your JSON payloads, passwords, source code snippets, and private images travel across the internet and may be logged or retained. Browser-based tools eliminate this risk entirely. Because processing happens locally using JavaScript APIs built into your browser (Web Crypto, Canvas, File), sensitive data never leaves your machine. There are no rate limits, no paywalls, and no registration — just open the tool and use it.

Frequently Asked Questions

Do these tools work offline?

Once the page has loaded, all tools work without an internet connection because all processing happens in the browser. You can bookmark any tool and use it even when your connection drops.

Is my data ever stored or tracked?

No. Tool inputs and outputs are never transmitted to any server. The site does not store session data, tool inputs, or any identifiable information. Standard anonymous analytics (page views) may be collected to understand which tools are most useful, but no personal or sensitive data is ever captured.

Are the tools free to use commercially?

Yes. All tools on NiftyTools are completely free with no licensing restrictions on how you use the outputs. Generated QR codes, converted images, hashes, and other outputs can be used in personal or commercial projects without attribution.