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Most Popular Tools

The most frequently bookmarked tools by our users

Image Compressor

Compress JPG, PNG, and WebP images by up to 80% without losing quality.
Merge PDF

Combine multiple PDF files into one clean document instantly.
Word Counter

Count words, characters, sentences, paragraphs, and reading time in real time.
JSON Formatter

Format, validate, beautify, and minify raw JSON string inputs.
Password Generator

Generate secure, cryptographically random passwords with custom symbols.
QR Code Generator

Create custom QR codes for URLs, text, Wi-Fi, and contact details.
JPG to PDF

Convert JPG and PNG images into a clean single PDF file.
Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase, and snake_case.
Base64 Encoder

Encode text or images into standard Base64 format strings.
Percentage Calculator

Calculate percentage of values, percentage differences, and changes easily.
Color Picker

Pick colors from screen or image and export HEX, RGB, and HSL formats.
SERP Preview Tool

Simulate how your meta title and description appear in Google search results.

Why Choose TinyToolzz?

Built from the ground up for radical speed, privacy, and simplicity

Privacy First
Your files never leave your device. All processing occurs 100% locally in your web browser.
Lightning Fast
No server uploads or queues. Execution starts instantly and returns results in milliseconds.
Truly Free
No subscription tiers, daily task limits, or hidden paywalls. 100% free forever for everyone.
Works on Any Device
Fully optimized for smartphones, tablets, laptops, and desktop viewports.
150+ Tools
A complete utility suite for images, PDFs, developer tasks, text, calculators, and converters.
No Dark Patterns
No artificial processing delays, fake progress bars, or deceptive sign-up pop-ups.

Frequently Asked Questions

Everything you need to know about using TinyToolzz

What is TinyToolzz?
TinyToolzz is a browser-based suite of online utilities for images, PDFs, text, developer code, calculators, and unit converters. Every tool runs directly inside your web browser.
Are all tools on TinyToolzz free?
Yes. All tools on TinyToolzz are 100% free with no premium plans, hidden subscriptions, or daily limits.
Do I need to create an account?
No. You never need to sign up, provide an email address, or log in to use any tool on TinyToolzz.
Is my data safe? Do files get uploaded to a server?
Your files and text inputs are completely private. All processing is performed client-side using JavaScript and Web APIs. Zero file data is ever transmitted to external servers.
Do the tools work on mobile devices?
Yes! TinyToolzz is designed mobile-first and works seamlessly across iOS Safari, Android Chrome, mobile browsers, tablets, and desktop computers.

Bookmark TinyToolzz for Later

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URL Decode

Decode percent-encoded URLs back to readable text. Malformed codes survive untouched, plus signs are handled, and repeat mode unwinds double encoding.

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Input chars
0
Output chars
0
Sequences decoded
0
Left unchanged

Technical Specifications

Exactly how decoding behaves on edge cases.

Rule Details
Decoding unit Maximal runs of valid %XX sequences decode together, preserving multi-byte UTF-8
Plus handling (default on) Every + becomes a space first; turn off to preserve literal plus signs
Invalid preserved %ZZ, lone trailing % and out-of-range codes stay verbatim and count as left
Repeat mode (default off) Up to 5 passes until output stabilizes; unwinds double and triple encoding
Already-plain input Text without sequences passes through unchanged with zero decoded
Processing location 100% client-side JavaScript in your browser memory; nothing is uploaded
Usage limit None — decode unlimited texts for free, no signup required

Features

⚡

Never-Fail Decode

Malformed codes are preserved instead of aborting — valid runs still decode.

🔁

Repeat Passes

Unwind double- and triple-encoded text automatically up to five passes.

📊

Honest Counts

Decoded sequences and leftovers are counted separately for full transparency.

🔒

Local Device Privacy

Everything runs in your browser with plain JavaScript. URLs never leave your device.

How to Use URL Decode

  1. Paste your percent-encoded text into the input box.
  2. It decodes live, with plus signs becoming spaces by default.
  3. Enable Repeat until stable for double-encoded input.
  4. Check the left-unchanged count for malformed sequences needing attention.
  5. Click Copy Output or Download .txt to keep the readable text.

Reading URLs Like a Developer

Encoded URLs hide their meaning behind percent signs: tracking parameters, search queries and API payloads all arrive as %20 soup. Decoding restores the human-readable original in one step — the fastest way to audit what a link actually carries before clicking or sharing it.

Plus signs and malformed codes

Query strings use + for spaces while paths may mean literal plus — hence the toggle. Naive decoders throw on the first malformed sequence and return nothing; this one preserves %ZZ and lone % characters while decoding everything valid around them, and tells you exactly how many pieces survived.

Layers of encoding

Redirect chains and nested APIs encode already-encoded text again, producing artifacts like %2520. Each repeat pass peels one layer until the text stabilizes. To go the other direction, use the URL Encode; for markup entities instead, the HTML Decode.

Honest limitations

Decoding cannot know whether a preserved % was intentional or corrupt — human judgment applies. Repeat mode caps at five passes as a safety bound. For very large pastes of tens of megabytes, live decoding on each keystroke can feel slower on older phones.

Privacy and Client-Side Security

Privacy Guarantee: All decoding occurs locally inside your browser. Your text is never transmitted, stored, or recorded on remote servers.

Many online decoders send your pasted URLs to a server for processing — a poor fit for private links, tokens or query data. TinyToolzz takes a different approach: every byte converts in the page itself with plain JavaScript.

Because nothing is uploaded, there is no waiting, no account, and no copy retained anywhere. Your text exists only in the tab's memory and is discarded when you close the page or click Clear.

Frequently Asked Questions

What is percent-decoding?
Percent-decoding reverses percent-encoding: sequences like %20 become a space and %26 becomes an ampersand, restoring the readable text behind a URL. Multi-byte UTF-8 runs rebuild accents and emoji exactly.
Should plus signs become spaces?
In query strings, yes: HTML forms send spaces as +, so decoding them back is correct and enabled by default. For URL paths where a literal plus matters, turn the toggle off to preserve every + character.
What happens to invalid sequences?
Malformed codes like %ZZ or a trailing lone % pass through unchanged instead of aborting the whole decode. Valid runs around them still decode, and the leftover count tells you how many pieces need attention.
How do I decode double-encoded text?
Enable Repeat until stable: the tool re-decodes up to five passes, so %2520 becomes %20 and then a real space. Each layer of over-encoding needs one pass, and decoding stops early once nothing changes.
Is there a text length limit?
There is no fixed limit. The tool decodes texts of several megabytes in memory. Extremely large pastes (tens of megabytes) may respond more slowly because decoding runs on each keystroke.
Is my text uploaded to a server?
No. All decoding happens locally in your browser with JavaScript. Your text is never transmitted, stored or logged anywhere. Closing the tab or clicking Clear removes everything immediately.

Related Encoding Tools

URL Encode

Encode special characters into URL-safe formats.
HTML Decode

Convert HTML entities back to readable characters.
HTML Encode

Convert special characters into safe HTML entities.
Text to Base64

Encode text to standard or URL-safe Base64.
Base64 to Text

Decode Base64 strings back to plain text.
Base64 to Image

Decode Base64 Data URIs back to image files.