Free Online Image, PDF, Date & Health Tools
Resize, compress, convert, annotate, and calculate right inside your browser. No registration required, lightning fast, and entirely private with zero server uploads.
Image Tools
Client-side image resizing, compression, format transformation, effects, and vector tracing powered by modern HTML5 Canvas technology.
Image Resizer
Resize image dimensions by width, height, percentage or aspect ratio instantly with high-quality bicubic smoothing.
Image ToolsImage Compressor
Reduce image file size up to 90% with live before-and-after quality comparison slider and instant download.
Image ToolsImage KB Resizer
Compress images to exact target KB limits (e.g. 20KB, 50KB, 100KB) required for official applications and exams.
Image ToolsImage to JPEG
Convert PNG, WebP, AVIF, HEIC, and BMP pictures to universal JPEG format with quality control and white matte fill.
Image ToolsColor Image to Black & White
Convert colorful photos to artistic monochrome grayscale, high-contrast B&W, sepia, or binary threshold art.
Image ToolsImages to PDF
Select, reorder, and compile multiple images into a single professional PDF document with custom margins and page sizes.
Image ToolsGrid to Image
Arrange multiple photos into aesthetic multi-cell collage grids with customizable spacing and backgrounds.
Image ToolsPNG to Vector
Convert raster PNG bitmaps into clean, scalable SVG vector graphics directly in your browser with edge tracing.
Image ToolsImage to STL
Generate 3D printable lithophane relief STL models from 2D photos using pixel luminance heightmapping.
Image ToolsImage to Cybergrind
Transform ordinary pictures into retro synthwave, cyber neon wireframe grids, and glitch cybergrind patterns.
Image ToolsImage to Scanned PDF
Give camera photos an authentic flatbed scanner effect with paper contrast filters and export as a PDF.
Image ToolsImage to GIF
Sequence multiple photo frames into an animated GIF with customizable speed, playback preview, and download.
Image ToolsImage to Caption
Generate engaging social media captions, motivational quotes, and trending hashtags for Instagram and X.
Image ToolsImage Cropper
Crop images to standard aspect ratios (1:1 square, 16:9 widescreen, 4:3) with draggable handles and live preview.
PDF Tools
Create, edit, convert, and manage PDF documents directly in your browser with zero file uploads.
PDF Editor
Preview PDF pages, apply diagonal text watermarks, rotate pages, and download updated documents safely.
PDF ToolsPDF to TIFF
Rasterize PDF pages and export into high-resolution uncompressed TIFF image format for medical and archival needs.
PDF ToolsJPEG to PDF
Batch convert JPEG and JPG photos into clean, printable PDF documents with orientation controls.
Date & Time Tools
Accurate calendar arithmetic, age milestones, working days counts, and timesheet calculators.
Age Calculator
Calculate your exact age down to the second with live ticking counters, next birthday countdown, and zodiac sign.
Date & TimeDate Difference Calculator
Find the exact span between two calendar dates in years, months, weeks, days, and working weekdays.
Date & TimeDate Calculator
Add or subtract days, weeks, months, or years from any date to find future delivery dates or historical events.
Date & TimeTime Duration Calculator
Calculate elapsed time between start and end times with break deductions, overnight shifts, and decimal hours.
Date & TimeWorking Days Calculator
Calculate business working days between two dates, excluding weekends and custom public holidays.
Date & TimeDays Between Dates
Fast, exact calendar day counter between any two dates with week breakdowns and day milestones.
Date & TimeBirthday Countdown
Live ticking countdown to your next birthday with days, hours, minutes, seconds and upcoming day of week.
Date & TimeHours Calculator
Weekly work timesheet calculator with break tracking, overtime calculation, and gross paycheck estimations.
Health & Fitness Calculators
Scientific formulas for BMI, BMR, TDEE, Body Fat, and daily calorie targets with medical disclaimers.
BMI Calculator
Calculate Body Mass Index (BMI) using metric or imperial units with interactive WHO colored health gauges.
Health & FitnessBMR Calculator
Determine your Basal Metabolic Rate using the clinical Mifflin-St Jeor formula for resting calorie burn.
Health & FitnessCalorie Calculator
Find exact daily calorie targets for weight maintenance, healthy weight loss (-0.5kg/wk), or muscle gain.
Health & FitnessIdeal Weight Calculator
Compare 4 established clinical formulas: Devine, Robinson, Miller, and Hamwi alongside healthy BMI ranges.
Health & FitnessBody Fat Calculator
Estimate body fat percentage using the proven U.S. Navy circumference method with neck, waist, and hip data.
Health & FitnessTDEE Calculator
Estimate Total Daily Energy Expenditure and get tailored protein, carbohydrate, and healthy fat macro splits.
Why Choose Image Resizer?
Designed from the ground up for speed, security, and simplicity. Discover why thousands trust our client-side utility suite.
Your sensitive photos, personal documents, and health metrics never leave your computer or phone. Processing runs entirely in browser memory.
No network upload delays or server wait queues. Image resizing, conversions, and complex math happen instantaneously utilizing your device hardware.
No credit cards, no sign-up forms, and no hidden file size paywalls. Every single tool is free to use without restrictions.
Fully responsive and mobile-friendly. Works smoothly across iPhone, Android, iPad, Mac, Windows, Linux, and Chromebook browsers.
How It Works in 3 Easy Steps
Get your tasks done in seconds without installing heavy software.
Select or Drag Your File
Choose any tool and drag your image or document directly into the dropzone. Calculators allow immediate number input.
Customize Options & Preview
Adjust width, height, compression quality, or calculation parameters. Watch the live interactive canvas update instantly.
Download or Copy Results
Download your newly processed image, vector SVG, or compiled PDF document with a single click. Zero waiting time.
Frequently Asked Questions
Answers to common inquiries about privacy, file formats, and tool accuracy.
No, never. Image Resizer is built on a 100% client-side browser architecture. When you select an image or document, HTML5 File and Canvas APIs process the data locally in your computer or phone's memory. No file is ever transmitted over the Internet to any backend server.
Yes, all 31 tools on Image Resizer are 100% free with no hidden charges, daily quotas, or premium paywalls. The platform is supported by non-intrusive online advertisements.
We support all modern raster and vector image formats readable by web browsers, including JPEG, PNG, WebP, GIF, BMP, SVG, and modern mobile capture formats.
Once you have loaded the page in your web browser, all image operations, PDF compilation, date calculations, and health formulas run locally without needing ongoing data transfer. You can continue editing even if your connection drops.
No. Our BMI, BMR, Calorie, and Body Fat calculators provide general informational estimates based on standard clinical formulas (e.g. Mifflin-St Jeor, WHO guidelines). They are not medical diagnoses. Always consult a qualified medical provider before starting any diet or exercise program.
Free Online Tools for Images, PDFs, Dates and Everyday Calculations
Image Resizer is a collection of practical browser tools for common file and calculation tasks. Resize or compress photos, convert images into useful formats, combine images into PDFs, work with PDF pages, calculate dates and durations, and explore general-purpose health calculators from one website.
Image tools for everyday publishing
Prepare images for websites, forms, marketplaces, social media and documents by changing dimensions, cropping, compressing, converting formats, creating GIFs, building photo grids, or generating stylized artwork. Each tool has its own instructions so you can choose settings based on the actual job rather than using one generic converter for everything.
PDF tools for simple document workflows
Turn photos into PDFs, combine multiple images into one document, create scan-style PDFs, convert PDF pages to TIFF, or make lightweight visual edits. Always keep your original files and check the final document before submitting it to an official portal or sharing it.
Date, time and health calculators
Use date and time calculators for durations, deadlines, working days and recurring events. Health calculators such as BMI, BMR, calorie, TDEE, body-fat and ideal-weight tools provide general estimates for educational use; they are not a substitute for individualized medical or nutrition advice.
Privacy-focused browser processing
Where a tool is designed for client-side processing, the work happens in your browser rather than requiring a routine upload to a remote processing server. Your browser, device, extensions, hosting configuration and the specific tool still matter, so do not treat any website as a substitute for your own security controls when handling highly sensitive material.
Frequently asked questions
Are the tools free to use?
The site is designed as a free collection of browser utilities. Availability and limits can vary by tool and device.
Do I need to install software?
No installation is intended for the browser-based tools. A modern browser with JavaScript enabled is required.
Will these pages rank automatically after adding SEO?
No. Better metadata and useful content make a site easier for search engines and people to understand, but rankings depend on many factors including relevance, crawlability, competition, links, performance and content quality.