DeepSource is the modern alternative to Semgrep.
Semgrep's pattern-matching approach leads to accuracy issues and false positives. Learn how DeepSource's AST-based analysis provides more reliable results.
Quickstart with
Free forever for small teams, setup in 5 minutes Contact SalesFor growing teams and enterprises
DeepSource is a generation ahead of pattern-matching tools.Beats competition on all fronts.
Pricing
Source Code Analysis
Dependency Scanning
Reachability Analysis
Code Coverage
Support for Monorepos
AI Assist
Advanced Reporting
User Experience
Runtime
DeepSource
Transparent, per-seat
Autofix™ AI
Modern, built for developers
No CI required
With DeepSource's pull request analysis workflow, everything is integrated — right at the point of merge, and this has been a game changer for us.
Reed Wilson, Engineering Manager
DeepSource
Semgrep
#1
Analysis Accuracy
DeepSource
Uses Abstract Syntax Tree (AST) based analysis for precise understanding of code structure and context, leading to significantly fewer false positives.
Semgrep
Relies on pattern matching and regular expressions, which can miss context and lead to more false positives and false negatives.
#2
Analysis Depth
DeepSource
Deep semantic analysis that understands code relationships, data flow, and control flow across files and functions.
Semgrep
Limited to syntactic pattern matching within single files, making it harder to detect complex issues and vulnerabilities.
#3
Custom Rules
DeepSource
Powerful custom analyzer SDK that allows writing rules with full access to AST and semantic information.
Semgrep
Pattern-based custom rules that are limited by the capabilities of regex matching and simple AST patterns.
#4
Developer Experience
DeepSource
Modern, intuitive interface with clear issue explanations and automated fixes for common problems.
Semgrep
Basic interface with less context for issues and limited automated fixing capabilities.
#5
Enterprise Readiness
DeepSource
Built for enterprise scale with strong access controls, SSO, and audit logging. Includes dedicated support and deployment options.
Semgrep
Limited enterprise features and support options, primarily focused on open-source and smaller teams.
5,000+ companies have chosen DeepSource.From startups to Fortune 500s.
'%3e%3cpath%20d='M15.7126%200.710938V11.4383H4.34574V0.710938H0V24.9295H4.34574V13.8481H15.7126V24.9295H20.0583V0.710938H15.7126Z'%20fill='%23226752'/%3e%3cpath%20d='M59.2443%2020.7322C59.2443%2020.7322%2059.2443%2014.3021%2059.2443%2013.7339C59.2443%2012.3205%2058.9245%209.71369%2055.8608%208.26036C52.7971%206.80702%2047.7604%206.03038%2043.723%2010.4703L45.2763%2011.7837C45.2763%2011.7837%2048.6398%208.54017%2052.6201%2010.2305C53.8393%2010.7501%2054.6987%2012.1892%2054.8301%2013.12C54.9414%2013.9195%2054.8301%2015.3871%2054.8301%2015.3871C53.6737%2014.6761%2051.8977%2013.9309%2049.5164%2013.9309C44.9594%2013.9309%2042.3325%2016.3779%2042.3325%2019.7414C42.3325%2023.1049%2044.9594%2025.3121%2049.5164%2025.3121C52.0347%2025.3121%2053.8764%2024.1157%2055.0214%2023.0421C55.1156%2023.6332%2055.2441%2024.1899%2055.4268%2024.8152H59.744C59.2786%2023.5675%2059.2472%2021.2033%2059.2443%2020.7322ZM50.767%2023.0478C46.5469%2023.0478%2046.7867%2019.7443%2046.7867%2019.7443C46.7867%2019.7443%2046.5469%2016.2009%2050.767%2016.2009C52.5287%2016.2009%2053.8992%2016.8633%2054.8272%2017.48L54.8243%2020.7465C53.8935%2021.9371%2052.5487%2023.0478%2050.767%2023.0478Z'%20fill='%23226752'/%3e%3cpath%20d='M31.9307%207.12367C25.0381%207.42918%2022.6682%2012.4402%2022.6682%2016.0435C22.6682%2022.5907%2028.0618%2025.3175%2031.9307%2025.3175C35.7996%2025.3175%2038.1895%2024.3238%2040.1196%2021.5371L38.5464%2020.3836C38.5464%2020.3836%2036.9931%2022.7106%2033.5525%2022.7106C29.5323%2022.7106%2027.3623%2019.7068%2027.3623%2017.257H41.0133C41.8128%2012.3202%2038.1495%206.84956%2031.9307%207.12367ZM27.3651%2014.8472C27.3651%2014.8472%2027.8419%209.5735%2031.8022%209.4136C36.2193%209.4136%2036.4992%2014.8472%2036.4992%2014.8472H27.3651Z'%20fill='%23226752'/%3e%3cpath%20d='M67.8102%208.84839C67.2762%209.40802%2066.8651%2010.0448%2066.4739%2010.7129V7.53496L61.8369%207.54352C62.0711%208.17168%2062.1967%209.15961%2062.2538%209.95052V24.818H66.6138L66.6195%2015.5412C66.6224%2015.0073%2066.6709%2014.4648%2066.7708%2013.9394C67.1991%2011.6923%2068.8438%2010.296%2071.1394%2010.2104L72.7698%2010.2075V7.13236C70.9453%207.00387%2069.0979%207.50069%2067.8102%208.84839Z'%20fill='%23226752'/%3e%3cpath%20d='M92%2024.9377C91.7659%2024.3096%2091.6402%2023.3216%2091.5831%2022.5307V0.682129H87.1517V9.98749C85.8954%208.21436%2083.9367%207.07796%2081.2213%207.07796C77.0012%207.07796%2073.0095%2010.9526%2073.0095%2016.0921C73.0095%2021.9197%2077.0012%2025.3061%2081.2213%2025.3061C84.0709%2025.3061%2086.0011%2024.3667%2087.2117%2022.5393C87.226%2022.6906%2087.2488%2022.939%2087.2774%2023.176C87.3716%2023.7671%2087.5001%2024.3238%2087.6828%2024.9491H92C92%2024.9463%2091.9972%2024.9406%2091.9972%2024.9377H92ZM82.609%2022.348C79.985%2022.348%2077.4638%2020.0495%2077.4638%2016.1977C77.4638%2012.6315%2079.9821%2010.333%2082.609%2010.333C84.4992%2010.333%2086.2952%2011.5693%2087.1546%2013.5994V19.1215C86.298%2021.2002%2084.4992%2022.348%2082.609%2022.348Z'%20fill='%23226752'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_1408_14660'%3e%3crect%20width='92'%20height='26'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20832%20300'%20style='enable-background:new%200%200%20832%20300;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill-rule:evenodd;clip-rule:evenodd;}%20.st1{fill-rule:evenodd;clip-rule:evenodd;fill:%236851FF;}%20%3c/style%3e%3cpath%20class='st0'%20d='M711.6,105.9c8.8,0,15.9-7.1,15.9-15.9s-7.1-16-15.9-16c-8.8,0-15.9,7.1-15.9,15.9S702.8,105.9,711.6,105.9z%20M328.8,88h32.9l34.7,82.9h1.5L432.7,88h32.9v123.4h-25.9v-80.3h-1L406,210.8h-17.6l-32.6-80h-1v80.7h-25.9V88H328.8z%20M515.6,213.1%20c-9,0-16.5-2.3-22.5-6.9c-6-4.6-8.9-11.5-8.9-20.7c0-6.9,1.7-12.3,5-16.3c3.3-3.9,7.7-6.8,13.1-8.6s11.3-3.1,17.5-3.6%20c8.2-0.8,14.1-1.6,17.6-2.5s5.3-2.8,5.3-5.8v-0.4c0-3.8-1.2-6.8-3.7-8.9c-2.4-2.1-5.9-3.1-10.3-3.1c-4.7,0-8.5,1-11.3,3%20s-4.6,4.6-5.5,7.7l-24.3-1.9c1.8-8.4,6.3-15.1,13.4-20.1c7.2-4.9,16.4-7.4,27.8-7.4c7,0,13.6,1.1,19.7,3.3c6.1,2.2,11,5.6,14.8,10.2%20c3.8,4.6,5.7,10.5,5.7,17.9v62.4h-25v-12.8h-0.7c-2.3,4.3-5.7,7.8-10.3,10.5C528.3,211.8,522.5,213.1,515.6,213.1z%20M523.1,195.4%20c5.7,0,10.5-1.6,14.2-4.9c3.7-3.3,5.5-7.4,5.5-12.2v-9.8c-1,0.7-2.6,1.3-4.8,1.8c-2.1,0.5-4.4,1-6.9,1.4c-2.4,0.4-4.6,0.7-6.5,1%20c-4.6,0.6-8.3,1.9-11.2,3.8c-2.8,1.9-4.2,4.6-4.2,8.3c0,3.5,1.3,6.2,3.9,8C515.7,194.5,519,195.4,523.1,195.4z%20M601.8,240.1%20c7.3,4.9,17.3,7.4,30,7.4c9,0,17-1.3,24-4c6.9-2.7,12.4-6.6,16.3-11.8c4-5.2,6-11.7,6-19.3v-93.5H652v15.6h-1%20c-1.2-2.5-2.8-5.1-5.1-7.7c-2.2-2.6-5.1-4.7-8.7-6.4c-3.6-1.8-8-2.7-13.3-2.7c-6.9,0-13.3,1.8-19.1,5.3s-10.5,8.7-14,15.7%20s-5.2,15.8-5.2,26.3c0,10.2,1.7,18.7,5.1,25.4c3.5,6.7,8.1,11.6,13.9,14.9c5.8,3.3,12.3,4.9,19.4,4.9c7.6,0,13.5-1.5,17.9-4.6%20s7.4-6.6,9.1-10.4h1.1v16.9c0,6.1-1.9,10.4-5.6,13.1c-3.7,2.7-8.4,4-14.1,4c-5.8,0-10.2-1-13.4-3.1c-3.1-2-5.2-4.3-6.2-6.8%20l-24.3,3.2C590.1,229.2,594.6,235.2,601.8,240.1z%20M647,183.9c-3.5,4.6-8.3,6.9-14.7,6.9s-11.4-2.3-14.8-7c-3.4-4.7-5.1-11-5.1-19%20c0-7.9,1.7-14.3,5.1-19.3c3.4-5,8.4-7.5,14.8-7.5c6.4,0,11.3,2.4,14.7,7.3c3.4,4.9,5.2,11.4,5.2,19.5%20C652.3,173,650.5,179.3,647,183.9z%20M699,211.4v-92.6h26.2v92.6H699z%20M764,207.2c7,4,15.3,6,25,6c8.4,0,15.7-1.5,21.9-4.5%20s11-7.2,14.5-12.6c3.5-5.4,5.5-11.6,5.9-18.7h-24.8c-0.8,4.9-2.7,8.8-5.8,11.5s-6.9,4-11.4,4c-6.1,0-11-2.4-14.7-7.2%20c-3.7-4.9-5.5-11.7-5.5-20.6c0-8.8,1.8-15.5,5.5-20.3s8.6-7.2,14.7-7.2c4.8,0,8.7,1.4,11.6,4.3c3,2.8,4.8,6.5,5.5,11.2h24.8%20c-0.4-7.2-2.4-13.4-6-18.7s-8.5-9.4-14.7-12.4c-6.2-2.9-13.4-4.4-21.7-4.4c-9.6,0-17.8,2-24.8,6.1c-6.9,4-12.3,9.6-16.1,16.8%20c-3.7,7.2-5.6,15.5-5.6,25c0,9.4,1.8,17.6,5.5,24.8C751.7,197.5,757,203.1,764,207.2z'/%3e%3cpath%20class='st1'%20d='M124.4,0c13,15.9,27.3,30.7,42.8,44.1c-10.3,33.5-15.9,69-15.9,105.9s5.6,72.4,15.9,105.9%20c-15.5,13.5-29.8,28.2-42.8,44.1c-13-15.9-27.3-30.7-42.8-44.1c10.3-33.5,15.9-69,15.9-105.9S91.9,77.6,81.6,44.1%20C97.1,30.7,111.4,15.9,124.4,0z%20M52,232.7c-16.4-11.5-33.8-21.6-52-30.3c5.1-16.6,7.8-34.2,7.8-52.4S5.1,114.2,0,97.6%20c18.2-8.7,35.6-18.8,52-30.3c6.3,26.6,9.6,54.3,9.6,82.7C61.6,178.5,58.3,206.2,52,232.7z%20M187.2,150c0,28.5,3.3,56.2,9.6,82.7%20c16.4-11.5,33.8-21.6,52-30.3c-5.1-16.6-7.8-34.2-7.8-52.4s2.7-35.8,7.8-52.4c-18.2-8.7-35.6-18.8-52-30.3%20C190.5,93.8,187.2,121.5,187.2,150z'/%3e%3c/svg%3e)
'/%3e%3cpath%20d='M51.08,15.11v.06c0,.69-.15,1.25-1.28,1.25s-1.28-.56-1.28-1.25v-.06c0-.69.15-1.25,1.28-1.25S51.08,14.42,51.08,15.11Zm-3.36,8.75a2.93,2.93,0,0,1-1.94-.62,3.35,3.35,0,0,1-.89-2.65V16.33H43.62c-.65,0-.81-.12-.81-1.18S43,14,43.62,14h1.25a0,0,0,0,0,0,0v-1.7c0-.78.14-1,1.42-1s1.42.2,1.42,1v8c0,.83.08,1,.35,1.19s1.15.07,1.82,0c.51-.08.54.13.68.9s.11,1.06-.39,1.18A10.29,10.29,0,0,1,47.72,23.86ZM35.26,16.4c-.51.1-.55-.11-.71-.88s-.16-1.06.34-1.19a11.59,11.59,0,0,1,3.38-.47,3.17,3.17,0,0,1,3.2,1.91,7.44,7.44,0,0,1,.33,3.05v3.59a1,1,0,0,1-.67,1A7.89,7.89,0,0,1,38,24c-2.38,0-4.27-.71-4.27-3.07s1.64-3.09,3.93-3.09a13.13,13.13,0,0,1,1.54.07,0,0,0,0,0,0,0v-.53c0-.87-.43-1.39-1.57-1.38A12.76,12.76,0,0,0,35.26,16.4ZM38.09,22a3.37,3.37,0,0,0,1.13-.19.05.05,0,0,0,0-.06V19.9a.06.06,0,0,0-.06-.06,6.82,6.82,0,0,0-1.2-.1c-1,0-1.59.25-1.59,1.16S37,22,38.09,22Zm-6.42,1.17a4.25,4.25,0,0,1-2.58.81A10.43,10.43,0,0,1,26,23.46c-.52-.16-.52-.3-.41-1.1s.2-1.12.68-1a14.63,14.63,0,0,0,2.62.47c.55,0,1.05-.22,1.08-.81s-.48-1-1.54-1.25c-1.21-.34-2.8-.92-2.86-3,0-1.64,1.23-2.94,3.33-2.94a8.28,8.28,0,0,1,2.87.47c.51.14.52.42.35,1.19s-.2,1-.71.88A8.35,8.35,0,0,0,29.15,16c-.42,0-.89.23-.89.73s.63.74,1.31,1a7.37,7.37,0,0,1,2.2,1.06,2.41,2.41,0,0,1,.88,1.95A2.88,2.88,0,0,1,31.67,23.19ZM17.41,16.4c-.52.1-.55-.11-.72-.88s-.15-1.06.35-1.19a11.43,11.43,0,0,1,3.38-.47,3.15,3.15,0,0,1,3.19,1.91A7.25,7.25,0,0,1,24,18.82v3.59a1,1,0,0,1-.67,1,7.89,7.89,0,0,1-3.11.6c-2.39,0-4.27-.71-4.27-3.07s1.63-3.09,3.93-3.09a13.13,13.13,0,0,1,1.54.07,0,0,0,0,0,0,0v-.53c0-.87-.43-1.39-1.58-1.38A12.77,12.77,0,0,0,17.41,16.4ZM20.24,22a3.31,3.31,0,0,0,1.12-.19.06.06,0,0,0,.05-.06V19.9a.06.06,0,0,0-.06-.06,6.82,6.82,0,0,0-1.2-.1c-.95,0-1.59.25-1.59,1.16S19.15,22,20.24,22Zm-7.41,1.84c-1.28,0-1.42-.2-1.42-1V14.94c0-.78.14-1,1.42-1s1.42.19,1.42,1v7.94C14.25,23.66,14.11,23.86,12.83,23.86ZM9,11.27c-1.19,0-1.36.2-1.56,1L5.16,20.87l-2.3-8.62c-.2-.78-.37-1-1.57-1s-1.42.19-1.23,1L3.11,22.88c.26.78.77,1,2.05,1s1.8-.2,2.06-1l3.05-10.64C10.46,11.46,10.22,11.27,9,11.27Z'%20fill='%23202e39'/%3e%3c/svg%3e)
Switch to the most accurate alternative to Semgrep.
Quickstart with