Chrome, Edge, Brave
From the Chrome Web Store
- Click the button — the store listing opens in a new tab.
- Choose Add to Chrome, then Add extension.
- That is the whole install; it updates itself. Edge and Brave take it from the same listing.
Firefox
Signed by Mozilla — installs for good
- Click the button — Firefox asks whether to add it.
- Choose Add, then Okay.
- That is the whole install; it survives a restart.
Pick this colour — right-click anything
Reads the actual pixel you clicked, so it works on images, gradients, canvas and video, not just elements that have a CSS colour. Opens Color Tools with it loaded.
Open this element in CSS Wireframe
Captures only what you right-clicked — even inside an iframe — as a sanitized subtree, without its ancestors or siblings. The toolbar button does the same for the whole page.
Send a selection to a tool
Highlighted text routes to whichever tool fits — JSON Formatter, Hash Generator, Encoder / Decoder, Diff Checker, Regex Tester, Case Converter and the rest.
Open this code block — right-click it
Reads the complete preformatted example in the frame you clicked, including nested highlighting and whitespace, then opens JSON Formatter, JS/CSS Beautifier or SVG Editor. Copy buttons and line numbers are left out; an ambiguous example asks which tool you want.
Smart Open with HelpyTools — right-click a link
Fetches the target once without cookies, classifies it from MIME type, filename and content, then opens JSON, Markdown, SVG, JS/CSS, Image Converter or HTTP Analyser. Errors and unknown formats open as the real response, so status and headers aren't discarded.
Convert an image — right-click it
Sends the image straight to Image Converter.
Extract this page's colour palette
On the toolbar button's right-click menu. Pulls the page's palette into Color Tools.
Send, in the HTTP Analyser
The analyser reads any raw HTTP message, curl command or .har file on its own. What a page cannot do is make a cross-origin request and read the response — CORS sits below anything page script reaches. The extension runs it from its background worker instead, and a Send button appears.
The bridge runs only on helpytools.com
The piece that talks to the tool pages is injected nowhere else — plus a localhost origin for development.
One script loads everywhere: the pointer tracker
About eighty lines. Pixel picking and element capture need to know where you right-clicked, and a context-menu click carries no coordinates. It listens for contextmenu and nothing else — no mouse tracking, no scroll listening, no reading the page on load. It remembers one point and two colours, and stores nothing.
Captures strip content
Wireframe capture removes text, comments, scripts, embedded documents, form names and values, event handlers and data attributes, keeping structural names, IDs, classes and a small attribute allowlist.
Nothing is uploaded
Every handoff goes to a HelpyTools tab on your machine, where the tool runs in your browser as it always does. There is no server in the path and no telemetry.