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IELTS skill guides, vocabulary, example tasks, videos and study materials.

Programming lessons with online compilers close at hand

Structural calculations linked to worked examples

Online resume and cover letter builder with AI writing and ATS checking tools.

Discover, test, subscribe to, and publish APIs through a public marketplace and enterprise hub.

Design and generate reports in PDF and office formats

Explore portfolio weights with explicit return, risk and constraint choices

Build native programs with Rust and manage their packages and builds through Cargo.

Compare Ethereum ecosystem usage and reuse openly licensed metric data

A Java testing library that starts disposable Dockerized dependencies for integration tests.

A free, open-source notebook for organizing notes in the browser or on desktop.

Route application messages through queues so publishers and background workers can operate independently.

Methods and activities for recognizing exclusion in products

Common SVG icons distributed as raw assets and Vue components.

An indexed archive showing typography in real graphic-design work.

A browser-based Elixir notebook for executable code and Markdown, with interactive results and collaboration.

Retail type families with optical-size options and licensing guides.

Write visual sketches in a desktop editor and run them in a graphics window with Processing.

Resolve an IP address to structured location, timezone and network-related fields through a REST endpoint.

Edit, run and share short Kotlin examples in a browser without first creating a full project.

A graphical environment for building measurement, instrument-control, and test applications with the G language.

Offer wallet checkout, payment links and customer invoices

Collect, process, and route logs, metrics, and traces with a lightweight telemetry agent.

Fit, evaluate, and reuse Python models for common supervised and unsupervised machine-learning tasks.