Epoch & Duration
A timestamp and duration helper: humanize durations, break them into weeks, days, hours, minutes and seconds, and translate Unix epochs to readable dates and back. Runs locally.
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Password Strength Meter
Test how strong a password is, entirely offline. Estimates entropy in bits, rates it from very weak to very strong, shows an approximate offline crack time, and suggests how to improve it. Nothing is ever sent anywhere.
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Calcis: LLM Cost Estimator
See what your LLM prompt will cost before you send it. Works on ChatGPT, Claude, and Gemini.
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Readability Score
Measure how hard a page is to read. Get a live Flesch Reading Ease score, a US grade level, words per sentence, word count and estimated reading time for the whole article or just your selection.
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TL;DR Summarizer
Get the gist of long reads instantly. This extension extracts a page's main text and ranks its sentences with a local TextRank model to surface the 3–5 most important ones, then lets you copy them.
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older reddit
Redirects reddit.com to old.reddit.com. Toggle it on or off from the toolbar popup. Vanilla JS. Made by claude.
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Gratuity Calculator UAE
Quick UAE Gratuity Calculator as per latest MOHRE rules 2026. Calculate your end-of-service benefits instantly for all Emirates including Dubai, Abu Dhabi and Sharjah.
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Cron Explainer
Paste a cron expression and instantly see a plain-English description plus the next upcoming run times. Supports ranges, steps, lists, names and @shortcuts. Offline.
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Page Sonification
Listen to the shape of a web page. Headings, links and images are mapped to musical tones — play the whole structure as a short sequence, or switch on live mode to hear elements as you scroll past them.
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HTTP Status Reference
A searchable reference of HTTP status codes with names, plain-English meanings and categories. Look up by code or keyword like timeout or gateway. Offline.
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Nightfall Dark Mode
Give every website a beautiful dark theme. Nightfall darkens pages across the web with adjustable brightness and contrast, a one-tap per-site switch, and an automatic sunset-to-sunrise night mode.
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Table Harvester
Finds every table on the page, previews them and converts the one you pick into the format you need.
Meneame LinkBack
Recupera la funcionalidad de ir a la noticia desde el enlace del título en la portada
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DevVault
All the dev tools you usually paste your secrets into — running 100% offline in your browser.
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Dade Toggle
Adds a toolbar button to toggle dark mode on all active tabs using CSS filter inversion. Version 1.0: Basic toggle using invert and hue-rotate filters.
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Emoji Sprinkler
Give web pages a cheerful upgrade by sprinkling relevant emoji after keywords such as pizza, music, star and more. Dial the amount up or down with a slider and revert to the original whenever you like.
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Page Weight X-Ray
See how heavy a page really is. Breaks down total transferred bytes by resource type — scripts, CSS, images, fonts, media and more — with per-type counts and bars, using the browser's Performance API.
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