Pocket Universe

A Chrome browser extension for Web3 transaction security. It reads website code while a user browses and warns before a transaction is signed, identifying the assets involved and indicating whether the transaction appears fraudulent or trusted. The video describes it as available across chains and free to install; the accompanying description also advertises optional per-transaction coverage for a fee.

Securo is an open-source, self-hosted personal-finance manager developed by securo-finance. It keeps financial data on the user's infrastructure and provides multi-account management, transaction search and CSV export, imports for OFX, QIF, CAMT, and CSV files, categorization rules, recurring transactions, budgets, savings goals, asset valuation, reports, multi-currency conversion, and optional bank synchronization through Pluggy, Enable Banking, or SimpleFIN. The application supports multiple users, passkeys, TOTP two-factor authentication, and OIDC single sign-on. An optional AI-agent profile adds self-hosted chat over Securo data, tool use through MCP, multi-provider support, and a per-agent RAG knowledge base. It can be deployed with Docker or Podman, uses a FastAPI and PostgreSQL-based stack with Redis and Celery, and is licensed under AGPL-3.0.

Knockoff is a browser extension that filters pseudo-brand listings from Amazon search results by hiding, dimming, or labeling them. It runs locally in a content script and resolves each listing's brand against user allowlists and blocklists, bundled lists of flagged and established brands, and name heuristics for patterns such as all-caps strings, unusual consonant runs, non-English letter pairs, non-Latin characters, and irregular capitalization. The extension supports Chrome, Firefox, and Safari; the public repository is a frozen, fully local snapshot with no accounts, tracking, or network requests, while maintained auto-updating versions are distributed through browser extension stores.

Safe{Wallet} is a multisignature smart wallet for secure self-custody, onchain treasury management, and organizational transactions. It distributes control across multiple owners using configurable N-of-M approvals, helping avoid a single point of failure; signers can include Ledger and Trezor hardware wallets. The wallet supports transaction simulation and risk scanning, spending limits and approval roles, multi-chain account management, DeFi and protocol interactions, and transaction bundling. Safe describes its contracts as open source and formally verified, and provides features including trustless recovery, transaction guards, and monitoring through Safe Shield.

Tampermonkey is a browser extension by Jan Biniok for creating, installing, managing, and running userscripts—small JavaScript programs that add features to or modify web pages. It supports Chrome, Microsoft Edge, Safari, Opera Next, and Firefox, and can be used to run scripts such as LinkSwift on cloud-drive pages. Its features include a popup for enabling or disabling scripts and checking updates, a dashboard for organizing installed scripts, automatic script updates, site blacklisting, compatibility support for older Greasemonkey userscripts, script synchronization, and a built-in CodeMirror editor with ESLint syntax checking.