The tools behind these guides
Every guide links to a tool you can use right away. Nothing is uploaded: the work happens on your device.
- Compress images — Reduce JPG, PNG and WebP file sizes in your browser.
- Convert images — Convert JPG, PNG and WebP images without uploading them, with a background color for JPG results.
- Crop images — Crop one JPG, PNG or WebP image to a fixed ratio without uploading it.
- Resize images — Scale images by width, height or percentage in your browser.
- Watermark images — Add the same text watermark to a batch of images without uploading them.
- Images to PDF — Combine JPG, PNG and WebP images into one PDF without uploading them.
- Clean text — Trim line edges, remove blank lines or drop duplicate lines without uploading your text.
- Count text — Count characters, lines, non-whitespace characters and UTF-8 bytes as you type.
- Format JSON — Format, validate or minify JSON without sending the content anywhere.
- Change text case — Convert text to UPPER CASE, lower case or Title Case without uploading it.
- Encode or decode URL — Encode text for a URL component or decode percent-encoded text in your browser.
- Encode or decode Base64 — Encode UTF-8 text to Base64 or decode Base64 back to text. This is encoding, not encryption.
- Trim audio — Trim a short audio clip, preview the selection and export 16-bit PCM WAV without uploading it.
- Extract video frame — Inspect a short video and save a frame as a PNG image without uploading it.
- Compare text — Compare two text versions line by line in your browser.
- Find and replace text — Replace literal text or regular-expression matches locally.
- Convert CSV and JSON — Convert CSV rows and JSON objects in this browser tab.
- Generate URL slugs — Turn a title into a clean URL slug using local text processing.
- Remove image metadata — Re-encode images in your browser to remove embedded EXIF and GPS metadata.
- Favicon generator — Create a downloadable set of common PNG favicon sizes from one image.
- Redact an image region — Select an image area and cover it with pixelation or an opaque color locally.
- Normalize audio peak — Adjust a short audio clip to a consistent peak level and export WAV locally.
- Reverse audio — Reverse a short audio clip in your browser and save it as WAV.
- Merge audio clips — Join compatible short audio clips in order and export one WAV file.
- Extract video frames — Save a small batch of PNG frames from a short video locally.
- Create a video contact sheet — Create a labeled PNG sheet of evenly spaced frames from a video.
- Convert a short video to GIF — Convert up to 10 seconds of browser-decodable video into an animated GIF locally.
- Extract audio from video — Extract a supported video audio track and save it as PCM WAV locally.