tokio-rs/bytes

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Utilities for working with bytes

Stars: 2.3k
Forks: 355
Open beginner issues: 0
Indexed issues: 57

Dominant language: Rust
License: MIT
Last GitHub push: Sep 3, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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57 open issues indexed

Minimal-versions check skipped in CI since #452, and it fails on `serde` 1.0.60 Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

tokio-rs/bytes#851 · Opened Sep 10, 2026
Optimize Extend trait to have BytesMut::extend(&mut self, &[u8) compile to a `memcpy` when possible Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

tokio-rs/bytes#848 · 3 comments · Opened Sep 8, 2026
Contract clarification for `Buf::remaining` Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

tokio-rs/bytes#835 · 5 comments · Opened Jul 3, 2026
`Buf` adapters can panic when custom `Buf` implementations break invariants Open

Difficulty 4/5 3-5 days Newbie friendliness 47/100

tokio-rs/bytes#833 · 1 comment · Opened Jun 23, 2026
sign_extend() potential shift underflow for nbytes > 8 Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

tokio-rs/bytes#832 · 3 comments · Opened Jun 22, 2026
Replace method, to match `String` Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

tokio-rs/bytes#824 · 2 comments · 1 reaction · Opened Mar 27, 2026
Suggestion(V2): change `Buf::chunk() -> &[u8]` to `Buf::nth_chunk(usize) -> &[u8]` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tokio-rs/bytes#823 · Opened Mar 10, 2026
Add `Bytes::try_slice` method Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

tokio-rs/bytes#807 · 6 comments · 2 reactions · Opened Nov 23, 2025
Add `Bytes::{from_raw_parts,to_raw_parts}` methods Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#800 · 2 comments · Opened Nov 7, 2025
`Buf::try_advance` support Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tokio-rs/bytes#786 · 3 reactions · Opened May 24, 2025
Inconsistency between `BytesMut` and `Vec<u8>` value for `BufMut::remaining_mut` Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

tokio-rs/bytes#771 · 1 reaction · Opened Feb 24, 2025
Suggestion: `BufMut::advance_mut` should make `cnt > self.remaining_mut()` unsound Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tokio-rs/bytes#760 · 4 comments · 1 reaction · Opened Jan 24, 2025
Suggestion: don't enable any feature flags by default in v2 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#759 · 1 comment · 2 reactions · Opened Jan 24, 2025
Call for breaking changes Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

tokio-rs/bytes#758 · 18 comments · 7 reactions · Opened Jan 24, 2025
`impl FromIterator for BytesMut` exposes implementation details Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#723 · 7 comments · Opened Jul 16, 2024
Feature request: implement `From<Cow<'static, [u8]>>` for `Bytes` Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

tokio-rs/bytes#712 · Opened Jun 12, 2024
Is the conversion from bytes to Vec<u8> O(1) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tokio-rs/bytes#711 · 5 comments · Opened Jun 4, 2024
Splice for BytesMut Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#706 · 2 comments · Opened May 6, 2024
Buf::chunks_vectored() is wrong if chunk() isn't the whole buf Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

tokio-rs/bytes#701 · 5 comments · 1 reaction · Opened Apr 26, 2024
Expose UTF-8 validated string type Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

tokio-rs/bytes#697 · 3 comments · 5 reactions · Opened Apr 23, 2024
Confusing documentation around `Arc<[u8]>` compatibility Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

tokio-rs/bytes#685 · 4 comments · 1 reaction · Opened Mar 27, 2024
Enable shrinking of allocations Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tokio-rs/bytes#679 · 3 comments · Opened Mar 18, 2024
`BufMut` does not include safety invariants in trait documentation Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

tokio-rs/bytes#664 · 1 comment · Opened Jan 24, 2024
Feature Request: Seekable Buffer ("SeekBuf") and cursor/iterator support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#657 · 2 comments · 4 reactions · Opened Jan 19, 2024
docs: unclear how to free memory from a bytesmut Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

tokio-rs/bytes#634 · 5 comments · Opened Sep 26, 2023
Unable to try_reclaim(..) a BytesMut allocation Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

tokio-rs/bytes#620 · 1 comment · Opened Aug 4, 2023
Export `BytesMut::from_vec(vec)` Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

tokio-rs/bytes#615 · 6 comments · 9 reactions · Opened May 28, 2023
Add protobuf-style variable-length serialization / deserialization Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tokio-rs/bytes#608 · 4 comments · Opened Mar 21, 2023
[Question] Is it reasonable to have cost efficient constructor for BytesMut? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tokio-rs/bytes#594 · Opened Feb 1, 2023
Add *_unchecked methods Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

tokio-rs/bytes#586 · 1 comment · Opened Jan 12, 2023
Core dump occurs sometimes when drop for bytes Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

tokio-rs/bytes#575 · 2 comments · Opened Nov 7, 2022
Drop separate miri codepath for ptr_map when LLVM issues are fixed Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tokio-rs/bytes#565 · 4 comments · 1 reaction · Opened Aug 13, 2022
Core dump occurs sometimes when drop Shared memory. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#564 · 4 comments · Opened Aug 12, 2022
`io::Write` via `buf::Writer` on `BytesMut` significantly slower than on `Vec<u8>` Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

tokio-rs/bytes#531 · 3 comments · 1 reaction · Opened Feb 11, 2022
Expose a test suite Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#530 · 2 comments · Opened Feb 9, 2022
Enabling zero copy deserialization (e.g. splitting a `BytesMut` based on on a &[u8] owned by that `BytesMut`). Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#485 · 2 reactions · Opened Feb 19, 2021
Fallible allocations? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#484 · 2 comments · 2 reactions · Opened Feb 18, 2021
Make alloc optional (embedded rust) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#479 · 24 comments · 2 reactions · Opened Feb 10, 2021
copy_to_bytes consumes &mut self Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#473 · 8 comments · 2 reactions · Opened Jan 26, 2021
Returned Writer might fail Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

tokio-rs/bytes#463 · Opened Jan 16, 2021
meta: Expose `Bytes` vtable Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#437 · 12 comments · 9 reactions · Opened Oct 20, 2020
BytesMut does not implement io::Write Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

tokio-rs/bytes#425 · 9 comments · Opened Aug 8, 2020
Unsplit an empty but with non-zero capacity `BytesMut` doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

tokio-rs/bytes#424 · Opened Aug 8, 2020
BytesMut::freeze is not zero-cost Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

tokio-rs/bytes#401 · 6 comments · 4 reactions · Opened Jun 28, 2020
Need for BytesMut::reserve_exact Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tokio-rs/bytes#396 · 2 comments · Opened Jun 5, 2020
Is there a way to fully replace `&'l [u8]` with `&'l mut dyn Buf`? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#395 · 9 comments · Opened May 29, 2020
BufMut implementation for `&mut [u8]` slices is a footgun Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

tokio-rs/bytes#387 · 4 comments · 2 reactions · Opened May 8, 2020
API to peek at integers of buffer Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

tokio-rs/bytes#382 · 3 comments · 3 reactions · Opened Mar 28, 2020
Consider providing "string" to int conversion Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

tokio-rs/bytes#336 · 7 comments · Opened Dec 3, 2019
Alternative interface for bytes_vectored Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

tokio-rs/bytes#334 · 1 comment · Opened Nov 28, 2019

tokio-rs/bytes

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