500Toolbox - Instant Tools

Auto-refresh any tab, record, capture and inspect the page - 48 tools inside the popup.

Fifty tools that open, run and finish inside the popup - not links to a website, and not a single upload. Auto-refresh a tab, capture the whole scrolling page, pull every image, inspect the font under your cursor, count the real words on a page. All of it happens on the tab you are already on, and all of it stays on your machine. ON THE TAB YOU ARE ALREADY ON Auto refresh Reload any tab on a fixed or random interval. Add a countdown on the page that you can pause, restart or stop. Set a limit so it ends after a set number of reloads, bypass the cache, or have it pause itself while you are working and pick up again when you stop. Capture • Full page - scrolls the whole page, stitches it, and saves a PNG or a PDF. Sticky headers appear once, not on top of every slice. • Visible area - one click, straight to a file or the clipboard. • Screen recorder - a tab, a window or the whole screen, with or without your microphone. MP4 where the browser supports it, WebM otherwise. Extract • Every image on the page with its real dimensions - lazy-loaded images and CSS backgrounds included, not just the ones already on screen. • Every link, sorted and deduplicated. • Any table, straight to CSV. • The page's text, or just what you selected. Inspect • Click any text and see the font that is actually rendering - the family, its real size, weight and colour, not what the stylesheet asked for. • Heading outline with the gaps marked, every meta tag, the canonical, and how a share will look on social. • Word count of the real content, not the nav and the footer. • Colour picker, the page's palette, load timings, cookies and storage. AND THE EVERYDAY ONES Alongside the page tools, the popup carries the small utilities you reach for between tasks. You can change the case of a block of text, sort its lines, compare two versions to see what moved, or turn a headline into a URL slug. You can tidy and check a JSON file, decode a token to read what is inside it, try a regular expression against your own sample, and read a cron line back in plain English. You can shrink or resize an image without leaving the tab. And you can work out a percentage, the days between two dates, a unit conversion, or what the time is in another city. THE WHOLE CATALOGUE, OFFLINE The popup also searches the full catalogue on 500toolbox.com and opens the tool you were looking for on the site. That catalogue is bundled with the extension, so search answers between keystrokes and keeps working with no connection. PRIVACY, PLAINLY This extension makes no network requests. None. There is no analytics, no telemetry, no account, and no server for anything to be sent to. Your pages, images, text and recordings are processed in the popup and saved by you. It also asks for access to no website when you install it. The only feature that ever needs it is auto-refresh, and only for the settings that require a timer running inside the page - an interval under 30 seconds, a countdown on the page, or pause-while-you-work. It asks you then, for that one site, at the moment you press Start. Say no and the feature still works, just at intervals of 30 seconds or more. Light and dark themes, following your system by default. https://www.500toolbox.com