Elysia is a TypeScript-first web framework built for Bun, delivering end-to-end type safety at the framework level. Consistently tops JS framework benchmarks.
Its Eden connector generates a fully typed client from route definitions — no codegen needed. Built-in TypeBox validation, lifecycle hooks, and automatic OpenAPI generation.
Ship faster than your competition
Focus on customers and sales while we handle product delivery. Hire a dedicated AI maker or a whole product team.
Launch new products
Fix your delivery
Hit fundraising milestones
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M2500%201250C2500%201940.36%201940.36%202500%201250%202500C559.644%202500%200%201940.36%200%201250C0%20559.644%20559.644%200%201250%200C1940.36%200%202500%20559.644%202500%201250ZM1030.7%20697.9C986.2%20688.4%20937%20683.6%20883.1%20683.6H350V1816.5H899.1C949.1%201816.6%20999%201810.2%201047.4%201797.5C1095.5%201784.8%201138.3%201765.3%201175.9%201738.8C1213.5%201712.4%201243.4%201678.3%201265.6%201636.5C1287.8%201594.7%201298.9%201545.2%201298.9%201488.1C1298.9%201417.2%201281.7%201356.6%201247.3%201306.4C1212.9%201256.2%201160.8%201221%201091%201200.9C1141.7%201176.6%201180.1%201145.4%201206%201107.3C1231.9%201069.2%201244.9%201021.6%201244.9%20964.5C1244.9%20911.6%201236.2%20867.2%201218.7%20831.2C1201.2%20795.2%201176.6%20766.4%201144.9%20744.7C1113.2%20723%201075.2%20707.4%201030.7%20697.9ZM960.9%201110.4C932.3%201131.5%20895.8%201142.1%20851.4%201142.1L599.2%201142.3V877.3H832.3C853.9%20877.2%20875.4%20879.1%20896.6%20882.8C917.2%20886.5%20935.4%20893.1%20951.3%20902.6C967.2%20912.1%20979.9%20925.4%20989.4%20942.3C998.9%20959.2%201003.7%20980.9%201003.7%201007.3C1003.8%201054.9%20989.5%201089.2%20960.9%201110.4ZM935.5%201615.7C912.6%201620.5%20889.2%201622.9%20865.7%201622.8L599.2%201622.9V1311.9H870.5C924.4%201311.9%20967.8%201324.3%201000.6%201349.2C1033.4%201374%201049.8%201415.6%201049.8%201473.7C1049.8%201503.3%201044.7%201527.7%201034.7%201546.7C1024.6%201565.7%201011.1%201580.8%20994.2%201591.9C977.3%201603%20957.7%201610.9%20935.5%201615.7ZM1758.3%201648.2C1694.8%201648.2%201646.1%201631.8%201612.3%201599C1578.5%201566.3%201560%201513.4%201556.9%201440.7H2148.7C2152.9%201377.2%202147.6%201316.4%202132.8%201258.2C2118%201200%202093.9%201148.2%202060.6%201102.7C2027.3%201057.2%201984.7%201021%201932.9%20994C1881%20967%201820.2%20953.5%201750.4%20953.5C1688%20953.5%201631.1%20964.6%201579.8%20986.8C1528.5%201009%201484.3%201039.4%201447.3%201078C1410.3%201116.6%201381.7%201162.3%201361.6%201215.2C1341.5%201268.1%201331.5%201325.2%201331.5%201386.5C1331.5%201449.9%201341.3%201508.1%201360.8%201561C1380.3%201613.9%201408.1%201659.3%201444.1%201697.4C1480.1%201735.5%201524%201764.9%201575.8%201785.5C1627.6%201806.1%201685.8%201816.4%201750.3%201816.4C1843.4%201816.4%201922.7%201795.2%201988.3%201752.9C2053.9%201710.6%202102.6%201640.3%202134.3%201541.9H1936C1928.6%201567.3%201908.5%201591.4%201875.7%201614.1C1842.9%201636.8%201803.8%201648.2%201758.3%201648.2ZM1744%201123.1C1799%201123.1%201840%201137.9%201867%201167.5C1893.9%201197.1%201912.7%201240.5%201923.4%201297.5H1556.9C1557.9%201281.7%201561.4%201263.7%201567.2%201243.6C1573%201223.5%201583%201204.5%201597.3%201186.5C1611.6%201168.5%201630.6%201153.5%201654.4%201141.3C1678.1%201129.2%201708%201123.1%201744%201123.1ZM1976.2%20741.1H1518.3V868.1H1976.2V741.1Z'%20fill='white'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_52_236'%3e%3crect%20width='2500'%20height='2500'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
'%3e%3cpath%20d='M444.031%20372.208C477.51%20456.911%20502.37%20544.115%20518.526%20633.203C541.573%20619.151%20563.115%20602.266%20582.693%20582.693C633.547%20531.833%20666.365%20467.75%20677.958%20398.198C628%20377.531%20573.286%20366.094%20515.948%20366.094C491.438%20366.094%20467.417%20368.208%20444.031%20372.208V372.208Z'%20fill='white'/%3e%3cpath%20d='M582.979%20100.266C582.88%20100.172%20582.786%20100.068%20582.693%2099.974C518.219%2035.5052%20432.505%20-7.62939e-06%20341.333%20-7.62939e-06C305.682%20-7.62939e-06%20270.865%205.45312%20237.828%2015.9219C290.781%2082.2656%20337.365%20153.068%20377.286%20227.896C452.495%20195.964%20521.771%20152.698%20582.979%20100.266Z'%20fill='white'/%3e%3cpath%20d='M609.797%20130.479C545.589%20185.63%20473.839%20230.323%20395.761%20263.724C407.271%20286.896%20418.141%20310.437%20428.401%20334.328C457.052%20328.875%20486.287%20326.094%20515.948%20326.094C573.401%20326.094%20629.282%20336.427%20682.308%20356.766C682.537%20351.641%20682.667%20346.5%20682.667%20341.339C682.667%20263.88%20657.032%20190.375%20609.797%20130.479V130.479Z'%20fill='white'/%3e%3cpath%20d='M131.234%20610.401C190.99%20657.255%20264.208%20682.667%20341.333%20682.667C390.354%20682.667%20437.792%20672.385%20481.203%20652.875C464.932%20558.594%20438.88%20467.625%20404.12%20381.047C283.323%20414.016%20183.802%20499.026%20131.234%20610.401V610.401Z'%20fill='white'/%3e%3cpath%20d='M334.88%20362.656C352.438%20355.229%20370.333%20348.938%20388.51%20343.76C378.917%20321.792%20368.74%20300.135%20358.031%20278.786C265.818%20313.026%20168.854%20330.375%2069.25%20330.375C46.1094%20330.375%2023.1198%20329.422%200.296875%20327.557C0.114583%20332.135%200%20336.729%200%20341.339C0%20432.51%2035.5052%20518.224%2099.974%20582.693C99.9948%20582.714%20100.021%20582.734%20100.042%20582.755C122.339%20538.286%20151.5%20497.87%20187.031%20462.333C229.745%20419.625%20279.484%20386.089%20334.88%20362.656Z'%20fill='white'/%3e%3cpath%20d='M339.323%20242.859C298.818%20167.844%20251.427%2097.0677%20198.016%2031.3698C162.021%2048.0417%20128.859%2071.0885%2099.974%2099.974C48.3281%20151.62%2015.2917%20216.906%204.1875%20287.708C25.6458%20289.464%2047.3438%20290.375%2069.25%20290.375C164.052%20290.375%20255.016%20273.594%20339.323%20242.859Z'%20fill='white'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_107_362'%3e%3crect%20width='682.667'%20height='682.667'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)