Image & PDF
Image & PDF tools convert and edit files right in your browser, so you can encode, resize, compress, and reformat images in seconds without uploading anything or installing software.
Free crop factor calculator: find your sensor crop factor and the 35mm-equivalent focal length and aperture for any lens, with the diagonal formula shown.
Free tool to compress any image to 100KB or under, right in your browser. Pick a photo, set the target, and download a smaller JPG. No upload, no signup.
Free tool to compress any image to 200KB or under in your browser. Pick a photo, set the target, and download a smaller JPG. No upload and no signup needed.
Free tool to compress an image to 20KB or under in your browser. Ideal for tiny upload limits and passport-style photos. Download a small JPG, no upload, no signup.
Free online image cropper. Crop a photo to an exact rectangle in your browser with a live preview overlay, then download as PNG or JPG. No upload and no signup.
Free depth of field calculator: enter focal length, aperture, focus distance and sensor to get the near limit, far limit, total DoF and hyperfocal distance.
Free favicon generator: turn any image into a square favicon PNG at 16, 32, 48 or 180 px right in your browser. No upload — pick a size and download instantly.
Free online image flipper. Mirror a photo horizontally or vertically in your browser with a live preview, then download as PNG or JPG. No upload and no signup.
Convert HEIC and HEIF photos from your iPhone to JPG instantly, right in your browser. 100% private, no upload, no watermark, with an adjustable quality slider.
Free hyperfocal distance calculator: enter focal length, aperture and sensor to find where to focus for maximum sharpness from the foreground to infinity.
Free image compressor that re-encodes photos as smaller JPEGs at a quality you choose. Shrink images in your browser, no upload, and see exactly how much you saved.
Free online image resizer. Change an image to exact pixel dimensions or a scale percent in your browser, lock the aspect ratio, and download as PNG, JPG, or WebP.
Free image resizer: change any photo to exact pixel dimensions in your browser. Lock the aspect ratio, set a new width, and download a resized PNG. No upload.
Free image to base64 converter. Turn PNG, JPG, GIF, WebP or SVG into a Base64 data URI you can paste into HTML or CSS. Runs in your browser, no upload.
Free image to WebP converter that re-encodes JPG, PNG, or other photos as smaller WebP files in your browser at a quality you choose. No upload, instant download.
Free JPG to PNG converter. Turn a JPG into a lossless PNG right in your browser at the same resolution. No upload — the file never leaves your device.
Free online tool to merge PDF files into one document. Combine and reorder multiple PDFs in your browser - 100% private, no upload, no signup, no watermark.
Free ND filter calculator: enter your base shutter speed and pick an ND filter to get the correct long-exposure shutter speed, with the stops and formula shown.
Free online tool to rotate PDF pages 90, 180, or 270 degrees and download. Rotate all pages or one page in your browser - 100% private, no upload, no signup.
Free PDF page extractor: type page numbers like 1,3,5-7 to pull them into a new PDF. 100% private and in-browser — your file is never uploaded.
Convert PDF pages to JPG images free and instantly. Runs in your browser — your file is never uploaded. Choose quality and download each page as a JPG.
Extract text from any PDF free and instantly. Runs entirely in your browser — your file is never uploaded. Copy or download the extracted text as a .txt file.
Convert PDF text to an editable Word (.docx) file free, in your browser. Your file is never uploaded. Best for text-based PDFs — extracts the text into Word.
Free PNG to JPG converter. Turn a PNG into a smaller JPG at a quality you choose, right in your browser. No upload — see the original size, JPG size, and dimensions.
Free tool to resize and compress an image to 100KB or under in your browser. Pick a photo and get a smaller JPG that meets the limit. No upload and no signup.
Free online image rotator. Turn a photo 90, 180, or 270 degrees, or any angle, in your browser with a live preview, then download as PNG or JPG. No upload, no signup.
Free tool to remove the white background from a signature in your browser and download a transparent PNG. Adjustable threshold, live preview, no upload, no signup.
Free online tool to split a PDF by page range. Pick the from and to pages and download a new PDF. 100% private — files are processed in your browser.
What are image & pdf tools?
Image & PDF tools are free online utilities that convert and edit files directly in your browser, with no upload and no software to install. They cover the everyday jobs of working with pictures: encoding images as text, changing pixel dimensions, shrinking file size, swapping between formats like PNG, JPG, and WebP, and generating favicons. Developers, designers, and bloggers use them to skip desktop apps and get a clean result in seconds.
Image & PDF tools on Toolzent
Pick the tool that matches what you need to do with your file right now.
| Tool | What it does |
|---|---|
| Image to Base64 Converter | Converts a PNG, JPG, GIF, WebP, or SVG into a Base64 data URI you can paste straight into HTML or CSS. |
| Image Resizer | Changes a photo to exact pixel dimensions, locking the aspect ratio so it never looks stretched, and downloads the result. |
| Image Compressor | Re-encodes a photo as a smaller file at a quality you choose, and shows the original size, new size, and percent saved. |
| PNG to JPG Converter | Turns a PNG into a JPG, flattening transparency onto a background to produce a smaller photo-friendly file. |
| JPG to PNG Converter | Turns a JPG into a lossless PNG, useful when you need a format that supports transparency and sharp edges. |
| Image to WebP Converter | Converts a PNG or JPG into a modern WebP file for smaller, faster-loading images on the web. |
| Favicon Generator | Creates browser-tab favicon files from your image so you can add a site icon without a design app. |
Choosing an image format
Format decides file size, quality, and whether transparency survives. Use this quick reference before you convert.
| Format | Best for | Transparency | Compression |
|---|---|---|---|
| PNG | Logos, icons, screenshots, sharp edges | Yes | Lossless |
| JPG | Photographs and complex color scenes | No | Lossy |
| WebP | Web images needing small size | Yes | Lossy or lossless |
| Base64 | Embedding a tiny icon directly in code | Keeps source format | Text, about 33% larger |
PNG keeps every pixel and supports transparency, so it suits graphics with text or flat color. JPG drops some detail to make photos far smaller, but cannot store transparency. WebP often beats both on size at similar quality. Base64 is not an image format; it is a text encoding that lets a small image live inside an HTML or CSS file.
How do I choose the right tool?
Match the tool to the job in front of you:
- Embedding a small icon or logo directly in HTML or CSS so the browser skips a request? Use the Image to Base64 Converter.
- Need an exact pixel size, such as a 1200 px content image or a square avatar? Use the Image Resizer with the ratio locked.
- File too heavy to email, upload, or post but the format must stay the same? Use the Image Compressor and start near 80% quality.
- Have a large PNG photo that does not need transparency? Use the PNG to JPG Converter for a much smaller file.
- Need transparency or a lossless copy of a photo? Use the JPG to PNG Converter.
- Want the smallest modern web image at good quality? Use the Image to WebP Converter.
- Adding a tab icon to your website? Use the Favicon Generator.
Why use Toolzent’s image & pdf tools?
Toolzent’s image & PDF tools are 100% free with no sign-up and nothing to install. They run privately in your browser using the built-in FileReader and an HTML canvas, so your images stay on your device and are never uploaded, logged, or stored, which makes them safe for confidential graphics and usable offline once the page has loaded. Results are instant, the layout is mobile-friendly, and every tool page shows a worked example. For instance, a 4000 by 3000 photo resized to width 800 gives a clean 800 by 600 image, and a 2 MB photo compressed at 80% quality often drops to a few hundred KB.
For related tools, explore our Dev & Tech, Text & Writing, and Converters category hubs.
Frequently asked questions
Are these image & pdf tools free to use?+
Yes. Every image and PDF tool on Toolzent is 100% free with no account, no trial, and no usage limits.
Do I need to upload my images or install anything?+
No. The tools read your file locally in the browser, so nothing is uploaded to a server and there is nothing to install.
What is the difference between PNG, JPG, and WebP?+
PNG is lossless and keeps transparency, JPG uses lossy compression for smaller photos but has no transparency, and WebP gives small files with optional transparency, ideal for the web.
When should I convert PNG to JPG instead of compressing?+
Convert PNG to JPG when you want a much smaller photo and do not need transparency; compress when you must keep the same format but shrink the file size.
Why is a Base64 image bigger than the original file?+
Base64 turns every 3 bytes into 4 text characters, so the string is about 33% larger; a 30 KB image becomes roughly 40 KB of text you can paste into HTML or CSS.
Is my data private when I edit an image here?+
Yes. Encoding, converting, resizing, and compressing all happen in your browser with FileReader and an HTML canvas, so your files stay on your device and are never stored.