Best Code Transpilers in 2026
Updated
In short: SWC is ranked #1 of 28 as of 4 October 2026, ahead of Transcrypt and Google Web Toolkit. The best-ranked option with a free plan is Transcrypt.
When code needs to move between languages or syntax versions, a transpiler can provide a conversion path from source to target. Compared on source languages, target languages and syntax-version conversion, the entries also differ in conversion mode and whether intermediate output is available. API and CLI access can help you assess how a tool may fit into your workflow; free-plan availability and paid-from pricing add cost considerations. SWC, Transcrypt and Google Web Toolkit are among the options shown. Check which languages and outputs matter for your work, then weigh the access methods and conversion details listed for each tool. Those criteria can help narrow the choices to options suited to your development needs.
28 code transpilers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Code Transpilers in tiers by the score this site gives them, S at the top. 1 of the 25 on this page have an Android app.
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which code transpiler is ranked first on Everything Xiaomi?
SWC is ranked #1 of 28 with a score of 7.4. Transcrypt is second and Google Web Toolkit third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.