Free Online Tools for Text, Images & PDF

Free online tools for text, calculations, dates, development, and conversions.
Fast, private, and runs entirely in your browser.

Image to Text (OCR)

Extract text from images using OCR. Supports JPG, PNG, WebP, and more.

Image Compressor

Compress images to reduce file size while maintaining quality.

Image Resizer

Resize images to any dimension. Maintain aspect ratio or set custom sizes.

Image Format Converter

Convert images between PNG, JPG, WebP, and BMP formats.

Image Cropper

Crop images to any size with a visual editor. Download instantly.

Image to Base64

Convert any image to a Base64 encoded string for embedding in code.

Background Remover

Remove image backgrounds instantly. Download transparent PNG files for free.

Merge PDF

Combine multiple PDF files into one document. Fast and free.

Images to PDF

Convert multiple images into a single PDF document.

Word & Character Counter

Count words, characters, sentences, and paragraphs in your text instantly.

Case Converter

Convert text to uppercase, lowercase, title case, sentence case, and more.

Lorem Ipsum Generator

Generate placeholder text for your designs and layouts.

Text to Slug

Convert any text into a URL-friendly slug instantly.

Remove Duplicate Lines

Remove duplicate lines from your text and keep only unique entries.

Markdown Preview

Write Markdown and see a live preview side by side. Export to HTML.

Text Diff Checker

Compare two texts and see the differences highlighted line by line.

CSV to JSON

Convert CSV data to JSON format instantly. Supports custom delimiters.

Scientific Calculator

Full-featured scientific calculator with trigonometry, logarithms, and more.

Age Calculator

Calculate your exact age in years, months, days, hours, and minutes.

Percentage Calculator

Find X% of a number, what percent one number is of another, and percentage change.

BMI Calculator

Calculate your Body Mass Index in metric or imperial units and see your BMI category.

Loan EMI Calculator

Calculate the monthly EMI, total interest and total repayment for any loan.

Discount Calculator

Enter a price and a percentage off to get the sale price and how much you save.

Compound Interest Calculator

Calculate compound interest with monthly, quarterly, or yearly compounding.

Tip Calculator

Calculate tip amount and split the bill between multiple people.

QR Code Generator

Make QR codes for links, text, Wi-Fi, email and phone numbers. Download PNG or SVG.

Password Generator

Generate strong, secure passwords with customizable length and characters.

Hash Generator

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

Color Palette Generator

Build color palettes from one base color using color-wheel rules. Copy HEX codes.

Invoice Generator

Create professional invoices and download them as PDF. Free and easy.

JSON Formatter

Format, validate and minify JSON, with clear error messages for invalid input.

Base64 Encode/Decode

Encode text to Base64 or decode Base64 strings instantly.

Color Picker & Converter

Pick colors and convert between HEX, RGB, and HSL formats.

Regex Tester

Test regular expressions against text with real-time match highlighting.

HTML Encode/Decode

Encode special characters to HTML entities or decode them back.

JWT Decoder

Decode and inspect JWT tokens. View header, payload, and expiration.

Date Difference Calculator

Find the exact difference between two dates in years, months, and days.

Add or Subtract Days

Add or subtract days, weeks, months, or years from any date.

Countdown Timer

Create a countdown to any date and see the time remaining live.

Age in Detail

Know your age broken down into months, weeks, days, hours, and seconds.

Unit Converter

Convert between length, weight, temperature, and more common units.

Palworld Breeding Calculator

See what any two pals hatch into, every parent pair for a pal, and the shortest breeding path. Palworld 1.0 data.

Upcoming holidays

Live countdowns, updated from your local date.

All countdowns →

Quick date answers

What week is it?30 days from today 90 days from today Any days from today Any weeks from today Any days ago Printable calendars How old if born in 2000?Age by birth year

Why Alventra.io?

100% Free

All tools are completely free to use with no hidden charges.

Privacy First

Everything runs in your browser. Your data never leaves your device.

No Sign-up

Start using any tool instantly. No account or registration needed.

Frequently Asked Questions

Are all tools on Alventra.io really free?

Yes, every tool is 100% free with no hidden charges, no premium tiers, and no usage limits. We support the site through non-intrusive advertising.

Is my data safe? Do you store my files?

All processing happens locally in your browser using JavaScript. Your files, images, and text never leave your device — nothing is uploaded to any server.

Do I need to create an account or sign up?

No. Every tool works instantly with no registration, no login, and no email required. Just open a tool and start using it.

What types of tools are available?

We offer 40+ tools across 9 categories: Image Tools (compressor, resizer, background remover, OCR), PDF Tools (merge, convert), Text Tools (word counter, case converter), Calculators (BMI, compound interest, percentage), Generators (password, QR code, lorem ipsum), Developer Tools (JSON formatter, regex tester, Base64), Date & Time Tools, Converters, and Game Tools (Palworld breeding calculator).

Can I use these tools on my phone?

Yes, all tools are fully responsive and work on mobile phones, tablets, and desktops. No app installation needed — just use your browser.

How is Alventra.io different from other tool websites?

Unlike most tool sites, everything runs in your browser — your data never touches our servers. This means faster processing, complete privacy, and offline capability for many tools.