Adding text to an image used to mean firing up Photoshop or trusting a sketchy ad-laden web app with your photo. With ToolStop's browser-based image tools you can drop text, captions, watermarks, or annotations directly onto a picture — and never upload the file anywhere. This guide walks through the three tools that cover 95% of text-on-image needs and shows how to pick the right one for the job.
Pick the right tool for your use case
If you want a classic top-and-bottom caption, the Meme Generator is the fastest path — it's built for instantly readable overlays. If you want a subtle copyright line or repeating tile across a product photo, the Watermark Image tool is purpose-built for that. For screenshots that need arrows, highlights, and short labels, the Screenshot Editor handles annotations natively. All three run 100% client-side, so the image never leaves your device.
Step 1 — Open the tool and drop your image
Every ToolStop image tool accepts JPG, PNG, WebP, and HEIC files via drag-and-drop or a click-to-select dialog. There's no upload progress bar because there is no upload — the file is read straight into the browser's canvas.
Step 2 — Type your text and tune the styling
Choose font, size, color, alignment, and stroke (outline). For maximum legibility on busy backgrounds, use a white fill with a thin black stroke or vice versa. Keep captions under ~7 words; longer phrases compete with the image itself.
Step 3 — Position and preview
Drag the text where you want it, or use the position presets (top/bottom/center). The preview updates in real time so you can see exactly how the final PNG will look — no surprise compression, no watermarks added by the tool.
Step 4 — Download and reuse
Export as PNG (lossless, ideal for sharp text) or JPG (smaller file, better for photos). Both run instantly because the rendering is local. Bookmark the tool URL and your last settings stay one tab away.
Privacy: your image never leaves your device
Because all rendering happens in the browser using the canvas API, the tool works on flights, in air-gapped networks, and in privacy-sensitive environments. No tracking pixels follow the file, no server logs see the bytes.