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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.

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Case Converter

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase and four more formats instantly. Output updates live as you type, entirely in your browser.

Choose a case

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Input words
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Input characters
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Output words
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Output characters

Technical Specifications

Exactly what each of the nine conversions does to your text.

Conversion Rule
UPPERCASE Every letter uppercased; numbers and symbols unchanged
lowercase Every letter lowercased; numbers and symbols unchanged
Title Case First letter of every whitespace-separated word capitalized; apostrophe words stay whole
Sentence case All lowered, then the first letter of the text and after each . ! ? capitalized
camelCase Words split on non-alphanumerics; first word lower, rest capitalized, joined with no spaces
PascalCase Same split as camelCase, but every word capitalized
snake_case Lowercased words joined with underscores
kebab-case Lowercased words joined with hyphens (URL and CSS friendly)
CONSTANT_CASE Uppercased words joined with underscores (environment-variable style)
Processing location 100% client-side JavaScript in your browser memory; nothing is uploaded
Usage limit None — convert unlimited texts for free, no signup required

Features

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Live Conversion

Pick a case once and keep typing — the output re-converts with every keystroke.

💻

Developer Formats

camelCase, PascalCase, snake_case and CONSTANT_CASE follow real language conventions.

📝

Writer Formats

Title Case keeps apostrophe words whole, and Sentence case mirrors normal prose rules.

🔒

Local Device Privacy

Everything runs in your browser with plain JavaScript. Drafts and code never leave your device.

How to Use the Case Converter

  1. Type directly into the Your text box, or paste an essay, heading or variable name.
  2. Click any of the nine case buttons — the converted text appears instantly below.
  3. Keep typing: the output stays in the selected case until you pick another.
  4. Click Copy Output to copy the result, or Download .txt to save it as a file.
  5. Click Clear to empty both boxes and start over.

A Quick Guide to Letter Cases

Letter case carries meaning far beyond looks. A headline in Title Case scans faster, a shouting paragraph in ALL CAPS strains readers, and a single wrongly-cased character breaks code, URLs and passwords. Knowing which convention applies — and converting in one click — saves constant manual retyping.

Cases for writing

Headlines and titles take Title Case, body text takes Sentence case, and emphasis takes UPPERCASE sparingly. The tricky part is consistency: style guides disagree on short words like “and” or “vs.”, so pick one rule per document. Writers cleaning pasted drafts often pair conversion with the Remove Extra Spaces tool first.

Cases for code and URLs

JavaScript variables use camelCase, Python and database columns use snake_case, CSS classes and URL slugs use kebab-case, and shared secrets use CONSTANT_CASE. Mixing them causes real bugs: userName and username are different variables. For publication-ready links, convert a headline to kebab-case here, then refine it with the Slug Generator.

Honest limitations

Title Case capitalizes every word mechanically and does not apply minor-word style rules from APA or Chicago manuals. The programmer formats split words on non-alphanumeric characters and target basic Latin letters, so scripts without case distinctions pass through unchanged. For very large pastes of tens of megabytes, live conversion on each keystroke can feel slower on older phones.

Privacy and Client-Side Security

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

Many online converters send your pasted text to a server for processing, which is a poor fit for unpublished drafts, client work, or source code. TinyToolzz takes a different approach: every conversion runs in the page itself with plain JavaScript string operations.

Because nothing is uploaded, there is no waiting, no account, and no copy of your writing 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

Which letter cases does the converter support?
Nine conversions: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. Click any case button and the output updates instantly; typing more text re-converts it in the selected case.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word and suits headings. Sentence case lowercases everything, then capitalizes only the first letter of the text and the first letter after each period, question mark or exclamation mark, matching normal prose.
When should I use camelCase, snake_case or kebab-case?
These are programmer and URL conventions. JavaScript variables use camelCase, Python variables and database fields use snake_case, CSS classes and URL slugs use kebab-case, and environment constants use CONSTANT_CASE. PascalCase names classes and components.
How does it handle apostrophes and non-English letters?
Title Case treats words with apostrophes as one unit, so don't becomes Don't rather than Don'T. The programmer formats split words on non-alphanumeric characters and work on basic Latin letters and digits; accented characters pass through unchanged in upper, lower, title and sentence modes.
Is there a text length limit?
There is no fixed limit. The tool handles essays and long documents of several megabytes in memory. Extremely large pastes (tens of megabytes) may respond more slowly because conversion runs on each keystroke.
Is my text uploaded to a server?
No. All conversion happens locally in your browser with JavaScript. Your text is never transmitted, stored or logged anywhere. Closing the tab or clicking Clear removes it from memory immediately.

Related Text Tools

Slug Generator

Generate clean, SEO-friendly URL slugs from any headline.
Capitalize Text

Capitalize the first letter of every word automatically.
Remove Extra Spaces

Trim leading, trailing and repeated spaces from any text.
Word Counter

Count words, characters and sentences with reading-time estimates.
Character Counter

Count characters and UTF-8 bytes with platform limit checks.
Find and Replace

Search and replace text or regex patterns instantly.