toml-rs Open Source Projects | Good First Issue

toml_edit: prefix segments of dotted keys and headers are rendered from the key's first definition, not each occurrence Open

A-output C-bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

toml-rs/toml#1214 · 1 comment · Opened Sep 7, 2026

A CRLF document with a multi-line string prints back with mixed line endings Open

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

toml-rs/toml#1213 · Opened Sep 4, 2026

toml: No way to convert `DeValue<'a>` into `DeValue<'static>` Open

A-parse C-enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

toml-rs/toml#1210 · 2 comments · Opened Sep 2, 2026

Spanned<T> for tables covers the header and not also the body Open

A-parse C-bug

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

toml-rs/toml#1206 · 4 comments · Opened Aug 31, 2026

Soundness: Out-of-bounds memory access via safe EventReceiver trait implementation Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

toml-rs/toml#1175 · Opened Jun 28, 2026

Strong type broke serializer Open

A-serde C-bug E-help-wanted

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

toml-rs/toml#1162 · 5 comments · Opened May 22, 2026

Preserve absence of final newline when writing? Or document not doing so? Open

A-output C-bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

toml-rs/toml#1158 · 3 comments · Opened May 11, 2026

`serde_spanned`: Make `Spanned` generic over the span Open

A-serde

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

toml-rs/toml#1134 · 1 comment · 1 reaction · Opened Mar 31, 2026

Empty HashMap String fails deserialization but works with serialization Open

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

toml-rs/toml#1128 · 2 comments · Opened Mar 25, 2026

Error highlight doesn't handle multi-byte characters correctly Open

A-error C-bug

Difficulty 3/5 1-2 days Newbie friendliness 62/100

toml-rs/toml#1120 · 1 comment · Opened Mar 9, 2026

`toml_edit` support for integer types u64, i128, u128 Open

A-edit C-enhancement M-breaking-change

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

toml-rs/toml#1114 · 4 comments · 1 reaction · Opened Mar 3, 2026

Inaccuracies in errors Open

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

toml-rs/toml#1108 · 1 comment · Opened Feb 21, 2026

Overly verbose output error message on .unwrap() Open

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

toml-rs/toml#1091 · 1 comment · Opened Jan 23, 2026

TOML version of `to_string_pretty` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

toml-rs/toml#1088 · 4 comments · Opened Jan 22, 2026

`Table::position` respected even if it means `ArrayOfTables` children are not rendered under their parent Open

A-edit A-output C-bug

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

toml-rs/toml#1083 · 10 comments · Opened Jan 4, 2026

Make Item::make_item public (after perhaps renaming it) Open

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

toml-rs/toml#1082 · 3 comments · Opened Jan 1, 2026

Impossible to build the `toml` crate for the `riscv32imc-unknown-none-elf ` target in `no_std` Open

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

toml-rs/toml#1054 · 4 comments · Opened Oct 17, 2025

MSRV violation in `no_std` in `toml` Open

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

toml-rs/toml#1053 · 3 comments · Opened Oct 11, 2025

Minimal toml configuration could compile more quickly Open

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

toml-rs/toml#1028 · 4 comments · 1 reaction · Opened Aug 15, 2025

Feature request: Macros / formatting hooks to control TOML serialization layout in toml_edit Open

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

toml-rs/toml#1027 · 1 comment · Opened Aug 13, 2025

`toml` 0.9: `DeInteger` and `DeFloat` are awkward to use Open

A-parse C-enhancement

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

toml-rs/toml#1017 · 6 comments · Opened Jul 22, 2025

v0.9 no longer displays the name of the duplicate key and table on parse Open

A-error

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

toml-rs/toml#1012 · 2 comments · Opened Jul 21, 2025

Add `Deserialize` impls for `DeValue` and `De*` variant types Open

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

toml-rs/toml#1010 · 1 comment · Opened Jul 17, 2025

`Display` implementation for `toml_edit::Document` produces an empty string Open

A-output C-bug

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

toml-rs/toml#1008 · 6 comments · Opened Jul 11, 2025

Make it possible to deserialize a new type variant that contain None Open

A-serde C-enhancement

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

toml-rs/toml#965 · 6 comments · Opened Jun 22, 2025

Prefer literal strings for key representation Open

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

toml-rs/toml#937 · 4 comments · Opened Jun 11, 2025

Consider splitting `Decor` out of types Open

A-edit C-question M-breaking-change

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

toml-rs/toml#888 · Opened May 2, 2025

Format drops comments between items in a table Open

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

toml-rs/toml#818 · 1 comment · Opened Dec 10, 2024

Add support for outputting integers as hexadecimal Open

A-edit A-output C-enhancement

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

toml-rs/toml#812 · 27 comments · 2 reactions · Opened Nov 15, 2024

`toml_edit`: value is not written if table is constructed beforehand Open

A-edit C-bug M-breaking-change

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

toml-rs/toml#762 · 5 comments · Opened Jul 28, 2024

Allow setting key's representation Open

A-output C-enhancement

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

toml-rs/toml#753 · 3 comments · 1 reaction · Opened Jul 15, 2024

Function for inserting table key at ordinal in a `TableLike` Open

A-edit C-enhancement

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

toml-rs/toml#747 · 1 comment · Opened Jul 4, 2024

Missing output on `or_insert()`ing on a nested `Item::None` table Open

A-edit C-enhancement

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

toml-rs/toml#742 · 3 comments · Opened Jun 10, 2024

Allow to create `Decor` instances with optional prefix or suffix Open

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

toml-rs/toml#729 · Opened May 10, 2024

Implement `From<inner type>` for `Item` Open

A-edit C-enhancement

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

toml-rs/toml#717 · Opened Apr 23, 2024

Remove `Item` support from `Document`s API Open

A-edit C-enhancement M-breaking-change

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

toml-rs/toml#697 · 3 comments · Opened Mar 8, 2024

Time doesn't implement Serialize and Deserialize Open

A-serde C-enhancement

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

toml-rs/toml#696 · 5 comments · Opened Mar 8, 2024

Examples need improvement - missing basic example that reads from a file, not a string variable. Open

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

toml-rs/toml#685 · 2 comments · Opened Feb 13, 2024

Document `Item::None` return values Open

A-edit C-enhancement

Difficulty 3/5 Half a day Newbie friendliness 52/100

toml-rs/toml#683 · 1 comment · Opened Feb 9, 2024

Make Array of Tables inlined by default when using to_string_pretty Open

A-serde C-question

Difficulty 4/5 3-5 days Newbie friendliness 45/100

toml-rs/toml#662 · 9 comments · 6 reactions · Opened Dec 11, 2023

Fail to work with typetag during serializing Open

A-serde C-bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

toml-rs/toml#636 · 7 comments · Opened Oct 25, 2023

Dependency Dashboard Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

toml-rs/toml-test-rs#48 · Opened Aug 14, 2023

Dependency Dashboard Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

toml-rs/toml#596 · Opened Aug 14, 2023

Add a way to customize the literal-ness (single/double quotes) of a string Open

A-edit C-enhancement

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

toml-rs/toml#590 · 9 comments · Opened Jul 28, 2023

Spans, both in Spanned and Errors lost with `serde(flatten)` / enum variants Open

A-error A-serde C-bug

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

toml-rs/toml#589 · 7 comments · 3 reactions · Opened Jul 28, 2023

The decision to preserve order should probably not be a Cargo feature Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

toml-rs/toml#573 · 5 comments · Opened Jun 23, 2023

Top-level shorthand for `ValueSerializer` Open

A-serde C-enhancement

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

toml-rs/toml#565 · 3 comments · Opened May 31, 2023

Make it easier to do a "crater" run of `toml` Open

A-parse C-enhancement

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

toml-rs/toml#515 · Opened Feb 11, 2023

single-line errors unexpectedly contain trailing newlines Open

A-error C-bug

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

toml-rs/toml#504 · 2 comments · Opened Jan 31, 2023

`toml_edit` error regression compared to `toml`: multi-line spans aren't rendered correctly Open

A-error C-bug

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

toml-rs/toml#458 · Opened Jan 18, 2023

toml-rs

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