ConvertAny vs Lodestar: Which Is Better in 2026?

ConvertAny is a free online toolkit that brings several everyday conversion tasks into one browser-based website. It combines file conversion, unit conversion, text utilities, app icon generation, and developer utilities. Rather than installing a separate application for each small conversion job, users can open the relevant tool in a web browser and work with the type of content they need to change. The service can be used without creating an account.

The file conversion section covers documents, images, audio, video, archives, fonts, and presentations. These categories address different practical needs: a document may need to be shared in another format, an image may need to work with a particular application, or a font or presentation may need a different file type. Users choose a suitable converter for the material they are working with. General file conversion uses cloud processing, so this part of the website is not an entirely local or offline workflow.

ConvertAny also provides tools for working with text. These include case conversion, encoding and decoding, hashes, text cleanup, and conversion between Simplified and Traditional Chinese. Such tools are useful when preparing a piece of text for another application or making small changes to content during routine work. String tools and developer utilities process data locally in the browser.

The developer utilities cover several structured-data and technical tasks. Available tools work with JSON, YAML, XML, and TOML; timestamps and time zones; number bases; file encodings; IPv4 and IPv6; color codes; and image-to-Base64 conversion. A developer may use these utilities while preparing an example, inspecting a value, or adapting data for a workflow. The tools are presented as browser utilities rather than an API service or an open-source software package.

For app projects, ConvertAny includes app icon generation for iOS, Android, and macOS. Its image, icon, and color-related tools can also be relevant to design work. Unit conversion provides another entry point for users whose task is about a measurement rather than a file or text string.

Lodestar is a VS Code extension for reading code you didn't write and reviewing code before it goes in. It runs on the models you already have in GitHub Copilot Chat, so there's no extra AI subscription.

Codemaps. Ask how something works. Lodestar follows the code and answers with the path it takes, step by step, each step pinned to a real line. Click a step and the editor goes there. Tab moves to the next one.

Explain on hover. Hover a function, a keyword, an operator, even a regex, and get a few lines on what it does in this codebase. Read more opens a longer explanation with the places it's used.

Reviews. Review your uncommitted changes, a branch or a commit. You get a verdict, the diff in an order that's easy to read, and the problems: bugs, security holes, slow code, and the mess AI assistants tend to leave behind, like comments that repeat the code, tests that don't test anything, or packages that don't exist. Most findings come with a fix you can apply in one click. New dependencies are checked against OSV.dev for known vulnerabilities and against npm, PyPI, crates.io and RubyGems to make sure they're real.

It also works in Copilot Chat: @lodestar makes a map, and /review and /explain work there too.

Pricing: $10 once, plus tax where your country charges it. No subscription and no trial. One key works on all your machines and doesn't expire.

Alternatives & competitors

CodeRabbit, Greptile, Sourcegraph Cody, Swimm, DeepWiki, Qodo, Sourcery, Bito