chakra-core/ChakraCore

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ChakraCore is an open source Javascript engine with a C API.

Stars: 9.3k
Forks: 1.2k
Open beginner issues: 0
Indexed issues: 582

Dominant language: JavaScript
License: MIT
Last GitHub push: Feb 19, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

Open All

582 open issues indexed

perf: Context independent, shared null && undefined Open

Node Performance

chakra-core/ChakraCore#3847 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Optimize divide to use int divide when floating point result isn't needed Open

Performance Task

chakra-core/ChakraCore#3867 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Optimize class constructor calls Open

Performance Task

chakra-core/ChakraCore#3869 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
perf: JSON.stringify Array performance Open

help wanted Node Performance

chakra-core/ChakraCore#3895 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Include paths prevent hermetically sealed builds Open

Codebase Quality help wanted

chakra-core/ChakraCore#3916 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement RegExp named captures Open

ECMAScript Spec Task

chakra-core/ChakraCore#3928 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Replace InlineCache template parameters with enum classes Open

Codebase Quality Task

chakra-core/ChakraCore#3939 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
How to get property attributes in the debugger Open

Answered help wanted Question Task

chakra-core/ChakraCore#3965 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chakra should treat xbox as a low memory device Open

Bug Severity: 3

chakra-core/ChakraCore#4025 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Disable x86 (32-bit) Linux builds or issue a warning Open

Dev Experience help wanted

chakra-core/ChakraCore#4091 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Memory management improvements neeeded Open

Node Performance

chakra-core/ChakraCore#4093 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reportings bugs found by OSS-Fuzz Open

Discussion

chakra-core/ChakraCore#4112 · 10 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
RegExp Bytecode: (follow-up #4071) Refactor Switch##n macros to templates. Open

Codebase Quality Task

chakra-core/ChakraCore#4117 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
osx: cleanup SEHInitializeMachExceptions and everything related. Open

Linux OSX

chakra-core/ChakraCore#4204 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Stringify ReadArrayLength and ReadArrayElement can be faster with templatization Open

Performance

chakra-core/ChakraCore#4231 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
jsrt: Help US to update documentation and samples Open

Dev Experience help wanted Wiki

chakra-core/ChakraCore#4286 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Inconsistent download archives across platforms Open

Dev Experience Proposal

chakra-core/ChakraCore#4367 · 15 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
xplat: prevent no-icu / icu / embed-icu combinations Open

Build Bug Linux OSX

chakra-core/ChakraCore#4395 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ASAN: We can leak ArrayBuffers in WASM code when failing module construction Open

Bug Severity: 3

chakra-core/ChakraCore#4417 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enumeration order incorrect with deletes Open

Bug ES Spec Conformance Severity: 2

chakra-core/ChakraCore#4486 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve lifetime of the eval cache Open

Proposal

chakra-core/ChakraCore#4513 · 3 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
Type sharing test`Prototypes/ChangePrototype` is flaky on r1.8 Open

Flaky Test Test Bug

chakra-core/ChakraCore#4530 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
swb: Disable flaky test wasm/wasmcctx.js Open

Flaky Test

chakra-core/ChakraCore#4547 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Throw in async function after await is not caught by debugger Open

Bug Severity: 2

chakra-core/ChakraCore#4630 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Spreading arrays is very slow compared to equivalent for-loop Open

Performance

chakra-core/ChakraCore#4642 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrong begin lookup segment in JavascriptArray::DirectSetItem_Full Open

Performance

chakra-core/ChakraCore#4658 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ICU configuration is inconsistent across Linux and macOS Open

Dev Experience Intl-ICU Linux OSX

chakra-core/ChakraCore#4695 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
eval() function will cause "arguments" property missing in JsDiagGetStackProperties result Open

Bug Severity: 3

chakra-core/ChakraCore#4733 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
WebAssembly Language Features Tracking Open

WebAssembly

chakra-core/ChakraCore#4745 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wasm: LowerWasmArrayBoundsCheck return value Open

Codebase Quality WebAssembly

chakra-core/ChakraCore#4751 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Compile Chakra.ICU.Data with RC.exe to simplify the build system and support ARM Open

Intl-ICU

chakra-core/ChakraCore#4755 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ASAN: AutoString in ch causes leaks in 262/262test.js Open

Codebase Quality Severity: 3

chakra-core/ChakraCore#4758 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ASAN: -GenerateLibraryByteCodeHeader config flag causes leaks in HostConfigFlags::Parse Open

Codebase Quality Severity: 3

chakra-core/ChakraCore#4759 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ASAN: WASM tests cause a handful of leaks Open

Codebase Quality Severity: 3

chakra-core/ChakraCore#4760 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Disabled tests in test/Lib/rlexe.xml referencing Product Studio Bug 190575 Open

Test Bug

chakra-core/ChakraCore#4770 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
String.replace exponential backtracking behavior on certain regular expressions Open

Performance Severity: 2

chakra-core/ChakraCore#4774 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Memprotect_GC_Heap_Size sometimes shows nonsensical values Open

Bug Dev Experience Severity: 3

chakra-core/ChakraCore#4779 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Refactor PlatformAgnostic interface into top-level module with no internal dependencies Open

Codebase Quality Dev Experience

chakra-core/ChakraCore#4782 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Property getters identified by Symbol can't invoke super Open

Bug

chakra-core/ChakraCore#4835 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Investigate usage of legacy Win32 functions, move to PlatformAgnostic as necessary Open

Codebase Quality Linux OSX

chakra-core/ChakraCore#4842 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Update Intl.DateTimeFormat to use relatedYear Open

Intl-ICU

chakra-core/ChakraCore#4885 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chakra failed to build with MSVC + permissive- on windows Open

Codebase Quality help wanted

chakra-core/ChakraCore#4902 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
JsDiagGetStackTrace returns empty array when stack is not empty Open

APIs Bug Severity: 3

chakra-core/ChakraCore#4944 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Fold ArgIn0 and LdThis into a single bytecode Open

Suggestion Task

chakra-core/ChakraCore#4955 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Memory leak in JsSetCurrentContext Open

Bug Linux Severity: 3

chakra-core/ChakraCore#5017 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chakra should throw TypeError when try to set property of an object which has only a getter Open

Bug Compatibility Severity: 2

chakra-core/ChakraCore#5033 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Bug:Strict mode write to indexed getter only prop should throw TypeError Open

Bug Severity: 3

chakra-core/ChakraCore#5046 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Inconsistency when try to access an property inside the "with" scope Open

Bug Compatibility Severity: 2

chakra-core/ChakraCore#5067 · 20 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
var declaration in eval should conflict with outer block-scoped let declaration Open

Bug Severity: 3

chakra-core/ChakraCore#5070 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chakra should throw SyntaxError when a variable is already declared inside the "with" scope Open

Bug Severity: 2

chakra-core/ChakraCore#5076 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

chakra-core/ChakraCore

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