Image Tools Every Web Developer Should Bookmark

Web development involves a steady stream of small image tasks: shrinking a hero photo so the page loads faster, converting a PNG to WebP, generating a favicon set, or checking whether an uploaded photo leaks GPS data. Each task is small on its own, but together they add up. This is a practical list of browser-based image tools that handle these without uploads.

Compress images without losing the page

Page weight is a ranking factor and a conversion factor. The fastest way to cut image weight is to compress before serving. The Image Compressor re-encodes JPG, PNG, and WebP files locally and can target a specific file size — useful when a CMS or ad platform caps attachment size.

For the why and the honest limits of browser compression, read Compress Images Without Losing Quality.

Convert between formats

Modern sites serve WebP or AVIF for photos and keep PNG for transparency. The Image Format Converter converts between PNG, JPG, and WebP locally, with quality and background controls. Need a specific conversion? It also ships dedicated variants for PNG to WebP, JPG to PNG, and WebP to PNG.

Resize to layout dimensions

Serving a 4000px-wide photo into a 400px slot wastes bandwidth. The Image Resizer sets exact width and height so you can produce the size the layout actually needs, with quality control for lossy formats.

Generate a favicon set

A complete favicon set covers multiple sizes and an apple-touch-icon, plus a manifest. The Favicon Generator produces the size set and the link tags from a single source image, all rendered locally.

Inspect and strip EXIF metadata

User-uploaded photos can carry EXIF data — camera model, settings, and sometimes GPS. Before you store or re-serve an image, check what it contains. The EXIF Metadata Viewer reads metadata locally and can re-encode to strip it.

Crop and rotate

Screenshots and stock photos often need reframing. The Image Crop and Rotate tool crops to aspect presets (including 16:9 and 1:1), rotates in 90° steps, and flips — all with pointer and keyboard controls.

A typical build workflow

When preparing images for a new page, a reliable order is:

1. Crop the source to the needed aspect ratio with Image Crop and Rotate.
2. Resize to the layout’s render dimensions with Image Resizer.
3. Convert to a modern format (WebP for photos) with Image Format Converter.
4. Compress to the target file size with Image Compressor.

Doing these locally means you can iterate quickly without uploading each revision, and nothing you are working on touches a third-party server.

FAQ

Why use browser tools instead of a CLI or build script?

For a one-off image or a quick check, a browser tool is faster to reach than a script — no setup, no flags to remember. For repeatable, automated pipelines at scale, a CLI or build step is still the right call. The two approaches complement each other.

Do these tools handle batch processing?

Most handle one image at a time, which suits ad-hoc work. For a large batch, a scripted approach is more efficient. The favicon generator is an exception — it produces a full size set from one source.

Can I use WebP everywhere now?

WebP is widely supported in modern browsers, so for most sites it is a safe default for photos. If you need to support older browsers or specific platforms that reject WebP, keep a JPG/PNG fallback. The converter makes producing both formats easy.