100% freeEvery tool is free — no sign-up, no limits
Free online tools
Simple tools for
everyday tasks.
Useful online tools that help you get things done faster — no technical knowledge required.
58 free tools · No sign-up · Works on any device
Categories
Browse tools by category.
Pick a category to see every tool in it. New categories are added regularly.
YouTube
16 tools
Tools for working with YouTube videos, channels and thumbnails.
Thumbnail Downloader · Video ID Finder · Embed Code Generator
Text
7 tools
Useful tools for writing, editing and analyzing text.
Word Counter · Case Converter · Remove Duplicate Lines
Images
7 tools
Resize, compress and transform images easily.
Image Compressor · Image Resizer · Image Cropper
PDFs
3 tools
Simple tools for managing PDF files.
PDF Merger · PDF Splitter · Images to PDF
Developer
9 tools
Format, convert and check code and data.
JSON Formatter · URL Encoder · Base64 Encoder
Marketing
1 tool
Build links, codes and campaigns in seconds.
UTM Link Builder
Productivity
4 tools
Everyday helpers that save you a few minutes.
QR Code Generator · Password Generator · List Randomizer
Calculators
2 tools
Quick answers for percentages, dates and more.
Percentage Calculator · Age Calculator
SEO
2 tools
Check and improve how pages appear in search.
Meta Tag Generator · URL Slug Generator
Colour
3 tools
Convert, check and build colour palettes.
Colour Converter · Contrast Checker · Colour Shades Generator
CSS
4 tools
Generate and tidy up CSS with live previews.
CSS Gradient Generator · Box Shadow Generator · Border Radius Generator
Coming soon
Popular
Popular tools
The tools people use most. Pick one and get started in seconds.
Thumbnail Downloader
Download a YouTube video's thumbnail in seconds, in every available size.
FreeYouTubePopularWord Counter
Count words, characters, sentences and reading time as you type.
FreeTextPopularImage Compressor
Make photos and images smaller without losing visible quality.
FreeImagesPopularPDF Merger
Combine several PDF files into one, in the order you choose.
FreePDFsPopularJSON Formatter
Make JSON readable, check it for errors, or minify it.
FreeDeveloperPopularQR Code Generator
Turn a link, text, Wi-Fi login or email into a QR code you can download.
FreeProductivityPopular
Just added
Recently added tools
The newest tools on the site.
Thumbnail Downloader
Download a YouTube video's thumbnail in seconds, in every available size.
FreeYouTubePopularEmbed Code Generator
Create the code to put a YouTube video on your website, with the options you want.
FreeYouTubeDescription Generator
Build a clear, well-structured video description — summary, links, chapters and hashtags in the right order.
FreeYouTubeHashtag Generator
Turn your keywords into correctly formatted YouTube hashtags, and check them against YouTube's rules.
FreeYouTube
16 tools
YouTube Tools
Useful YouTube tools that make common tasks faster and easier. Paste a link, get what you need.
Thumbnail Downloader
Download a YouTube video's thumbnail in seconds, in every available size.
FreePopularVideo ID Finder
Get the video ID from any YouTube link, plus clean watch and embed links.
FreePopularEmbed Code Generator
Create the code to put a YouTube video on your website, with the options you want.
FreeTimestamp Generator
Turn a list of chapters into timestamps that YouTube recognises.
FreeDescription Generator
Build a clear, well-structured video description — summary, links, chapters and hashtags in the right order.
FreeHashtag Generator
Turn your keywords into correctly formatted YouTube hashtags, and check them against YouTube's rules.
FreeThumbnail Checker
Check your thumbnail's brightness, contrast, colours and text before you publish.
FreePopularThumbnail Preview
See how your thumbnail will look on YouTube's home page, search and phones.
Free
Guides
Popular guides
Clear, step-by-step answers to the questions people ask most.
How-to
YouTube Thumbnail Downloader: How to Download YouTube Thumbnails in Full Size
How to save any YouTube video's thumbnail in the largest size available — on a computer or phone — plus how thumbnail URLs work, every size YouTube makes, and fixes for common problems.
· 9 min read
Explainer
Which YouTube Metrics Are Public — and What You Can Learn From Them
Subscribers, views, likes and comments are public. Click-through rate, impressions and watch time are not. What public data can and can't tell you about a channel.
· 5 min read
Guide
How to Check Whether a Thumbnail Still Reads at Small Sizes
Most thumbnails are seen far smaller than they're designed. A practical, repeatable way to test text and subject legibility before you publish.
· 5 min read
No setup. No learning curve.
Every tool is built for people who just want the job done.
Free, always
Every tool is free to use. No trials, no hidden limits.
No sign-up
Open a tool and start. No account, no email, no password.
Private by design
Most tools run right in your browser, so your files and text stay with you.
Works on any device
Phone, tablet or computer — every tool is built to be easy on a small screen.
Frequently asked questions
What is OnlineToolPro?
OnlineToolPro is a collection of free online tools for everyday tasks — like downloading a YouTube thumbnail, finding a video ID or counting the words in a text. Each tool does one job, simply.
Do I need to create an account?
No. Every tool works straight away without signing up.
Are the tools really free?
Yes. All tools are free to use.
Is my data safe?
Yes. Every tool runs entirely in your browser, so your files and text never leave your device. We don't have accounts or a database.
Will you add more tools?
Yes. We're starting with YouTube and text tools, and image, PDF, social media and developer tools are on the way.
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