Local processing
Your PDF, image, audio, video, and text files are handled directly in your browser and do not get uploaded to Bukmrk servers.
28 tools available • no sign-up needed
Free online tools
worth bookmarking
Your favorite PDF, image, text, video, and audio tools on one site. Edit, convert, clean, and create faster with easy-to-use free tools.
Tools
Split PDF
Quickly split a PDF by page range or separate each page into its own PDF file.
PDF
Open
Add Margins to PDF
Add white space around PDF pages for cleaner printing and improved page layout.
PDF
Open
Audio Trimmer
Trim and cut MP3, WAV, and other audio files with precise start and end times.
Audio
Open
BMI Calculator
Calculate body mass index from height and weight using metric or imperial units.
Calculator
Open
CSV to JSON Converter
Convert CSV rows and columns into clean JSON format with flexible delimiter options.
Data
Open
HTTP Status Checker
Check HTTP status codes and trace each redirect in a URL’s redirect chain.
Website
Open
Image Colour Picker
Pick colors from any image and copy HEX, RGB, HSL, or CSS-ready codes.
Design
Open
Profit Margin Calculator
Calculate profit, margin, and markup from product cost, selling price, and fees.
Business
Open
Snake Game
Play a quick Snake game, collect food, grow longer, and chase a higher score.
Fun
Open
Time Zone Converter
Convert dates and times between cities, countries, and time zones instantly.
Time
Open
Video Thumbnail Extractor
Extract video thumbnails, choose the perfect frame, and save it as an image.
Video
Open
Add Text Watermark to Image
Add text watermarks to images with custom settings and live preview before saving.
Image
Open
Looking for more? We have 28 tools and counting.
Browse All ToolsPutting Privacy First
File processing that
stays on your device.
No file uploads. Minimal data transfers. Built for speed, privacy, and security.
No account or installs
Use our free online tools without creating an account, installing software, or setting up a workspace.
Fast results
Most results appear immediately after you run the tool, so you can finish quick tasks without extra waiting.
FAQ
Frequently asked questions
Bukmrk gives you free online tools with no account, no installs, and file tools that keep files on your device. Here’s how it works.
Are Bukmrk tools really free?
Yes. Bukmrk tools are free to use. You do not need an account, a paid plan, or a credit card to use the online PDF, image, text, video, data, and utility tools.
Do my files ever leave my device?
For file tools, your files stay on your device. PDF, image, audio, video, and text files are handled directly in your browser and are not uploaded to Bukmrk servers.
What does local processing mean?
Local processing means the tool works on your device through your web browser. For file tools, this helps you edit, convert, clean, resize, or check files without sending those files to Bukmrk.
Can I use Bukmrk for private or sensitive files?
Bukmrk is designed to reduce unnecessary file handling by keeping file processing on your device where possible. For highly sensitive files, you should still follow your own privacy, workplace, school, or legal requirements.
Can I use these tools on my phone or tablet?
Yes. Bukmrk works in modern mobile and tablet browsers. Some tools, especially PDF, image, audio, and video tools, may be easier to use on a larger screen.