Packages

Serialization & Data Formats Packages

Serialization and data-format libraries for converting between structured data and wire formats (Serde, Protobuf, JSON/YAML/TOML, MessagePack).

487 packages

Packages in Serialization & Data Formats

Kind
Tags
JSON111 Parser79 Rust77 Serde58 Serialization57 Python48 Javascript35 XML29 Csv27 Compression24 Parse23 Protobuf22 Golang22 Yaml21 Encoding21 Openapi21 Go20 PHP20 Toml19 Typescript19 Hacktoberfest17 Nodejs16 Stringify16 HTML16 Schema15 Base6413 Parsing13 Fast13 JSON13 HTTP13 Deserialization13 No_std12 Decompression12 Msgpack12 Serialize11 Excel11 Deflate10 Stream10 JSON Schema10 Streaming10 Validation10 Swagger10 Encoder10 Diff10 Ics10 Encode9 Browser9 Protocol Buffers9 Convert9 JSON Parser9 Rss9 Serializer8 Query8 Zlib8 API8 Xls8 Jsonpath8 Pydantic8 Zstd8 Icalendar8 Cbor8 Decode7 Gzip7 Cli7 Frontmatter7 Json57 Openapi37 Patch7 Feed7 Geojson7 Snappy7 Ical7 Asn17 Python37 Node6 Querystring6 Mime6 JS6 Config6 Markdown6 Dataclasses6 Xlsx6 Dom6 Atom6 Decoder6 Decoding6 Export6 Oas6 Geospatial6 Avro6 Data5 Xml2js5 Xml2json5 Generator5 Hex5 Arrow5 Parquet5 Filter5 Jsonschema5 Binary5 XML Parser5 Library5 Codec5 Messagepack5 Object5 Writer5 Zstandard5 Safe5 Performance5 Jsonc5 Compress5 Lz45 Calendar5 Wasm5 Wkt5 Email5 Simd5 Der5 Html55 No Std4 Yaml Parser4 Zip4 URL4 Buffer4 Types4 Tiny4 Node.js4 Front Matter4 Rpc4 Conversion4 String4 Simple4 Toml Parser4 Spreadsheet4 Ods4 Archive4 Oci4 Configuration4 Path4 Xpath4 Brotli4 Decompress4 Base324 Zero Copy4 Pandas4 Base584 Geo4 Gis4 Ttf4 DNS4 Python Library4 Asn4 Ber4 Sanity4 Derive3 Inflate3 Csv Parser3 Comma3 Qs3 Js2xml3 Json2xml3 Validate3 Validator3 Front Matter Parsers3 Matter3 Marshalling3 Tsv3 Unicode3 Tomli3 Xlsb3 REST3 Bytes3 Transmute3 Crates3 Grpc3 LLM3 Structured Data3 LLM3 Messagepack3 Error3 To3 Util3 Laravel3 Import3 Transform3 Flatten3 Jmespath3 Ts3 Delta3 Builder3 Convertor3 Peg3 Grammar3 Comments3 Env3 Sort3 Code Generation3 Ieee7543 Integer3 Web3 C3 Outlook3 Rfc55453 Events3 Webassembly3 Cryptography3 Base163 Unified3 Wkb3 Django3 Image3 Tag Production3 L10n3 Async3 Pickle3 Gltf3 3d3 Polyfill3 Vcard3 Hjson3 JSON Pointer3 Yaml2 Nostd2 Utf82 Delimited2 File2 Workers2 Uuid2 Browserify2 Urlencoded2 Pako2 Unzip2 Zlib Ng2 Transformer2 Assemble2 Documentation2 Extract2 Generate2 Cookie2 Zod2 Ecmascript2 Npm Package2 Query String2 Chardet2 Charset2 Datetime2 Numpy2 Pyo32 Rust Library2 Deserialize2 Sylk2 Office2 Component2 Symfony2 Symfony Component2 Casting2 Annotations2 Utilities2 Containers2 Docker2 Rdf2 Agent2 Prompt Engineering2 Nlp2 Gnumeric2 Phpexcel2 Golang Library2 Little Endian2 Big Endian2 Endian2 Geoip2 Geoip22 Geolocation2 Maxmind2 Csv2json2 Json2csv2 Media Types2 Hast2 Hast Util2 Unist2 Utility2 Apache Arrow2 Apache2 Csv Converter2 Unflatten2 Rss2 Syndication2 Wrapper2 Stable2 Cplusplus2 Csharp2 Java2 SQL2 Lexer2 Gorilla2 Gorilla Web Toolkit2 Cdata2 XML2 Transformation2 Linked Data2 Semantic Web2 Structured2 JSON Comments2 Perfomance2 JSON Serialization2 Ini2 Bfloat162 F162 JSON Patch2 Ggml2 Thrift2 Ujson2 Json2yaml2 Yaml2json2 Openapi312 Subscription2 Rfc2 Alarms2 Apache Parquet2 Merge2 Dataclass2 Eslint Plugin2 Napi Rs2 Comment JSON2 JSON Parse2 JSON Stringify2 Base X2 Bech322 Bech32m2 Rfc46482 Markdown Frontmatter2 Mdast2 Mdx2 Remark2 Remark Plugin2 Formatter2 JSON Path2 CSS Selectors2 Bindings2 Csv Format2 Csv Parsing2 Jsonpath2 Cose2 Ascii2 Lz4 Frame2 Opentype2 Otf2 Truetype2 Icalendar2 Plist2 Serverless2 Huggingface2 Machine Learning2 Ical Parser2 Ics Parser2 Ifb2 Factur X2 Xrechnung2 Eot2 Svg2 Woff2 Woff22 Ffi2 Bitpacking2 Spec2 I18n2 Blosc22 Storage2 Dbml2 Bigdata2 CSS2 Epub2 Bitset2 Bitvector2 Bitmap2 Bitstream2 Rust Crate2 Iceberg2 Gherkin2 Multipart2 Editions2 Set2 Lucene2 PHP Imap2 Vcf2 Debugging2 Cer2 Isobmff2 Mp42 Video2 Groq2 Localization2 Hyper2 S Expression2 Esri2 Ewkb2 Ewkt2 Geopackage2 Spatial2 Croaring2 Exif2 Metadata2 Tokenizer2 Whatwg2 Mime Message2 Rfc 20452 Rfc 20492 Rfc 28222 CSS2 Cascading style sheets2 Cssparser2 Dom level 2 stylesheets2 Dom level 2 css2 Source Map2 Linux2 Netlink2 Varint2 Wasm Bindgen2 Gray Matter2 Ipfs2 Decorator2 Piston2 Ubjson2 Sitemap2 Color2 Kiota2 Lightweight2 Backport2 Backports2 Pep 7842 Local First2 Loro2 Key Value Store2 Mime Type2 Character2 Entities2 Entity2 Reference2 Sse2 Formdata2 Pyyaml1 Yaml Editor1 Stringifier1 Text1 Auto Detect1 Tab1 Pipe1 Filereader1 Worker1 Thread1 Threading1 Multi Threaded1 Parse Uuids1 Guid1 Unique1 Browsers1 Querystrings1 URL Parsing1 Arraybuffer1 Compatible1 Dataview1 Uint8array1 Mime Types1 Body1 Expressjs1 Middleware1 High Performance1 Gunzip1 Jszip1 Non Blocking1 Blitzjs1 Superjson1 Command Line1 Fast XML Parser1 Locale1 Rapid1 Xml2nimn1 X2js1 Assert1 Gatsby1 Jonschlinkert1 Mapbox1 Metalsmith1 Netlify1 Phenomic1 Coffee1 Coffee Script1 Docs1 Extracting1 Front1 Gh Pages1 Gray1 Jekyll1 Site1 Static1 Template1 Yfm1 Cookies1 Protobuf Runtime1 Protoc1 Protocol Compiler1 Open1 Backend1 Frontend1 Es51 Es20151 Urlsearchparams1 Param1 Parameter1 Searchparams1 Data validation1 Json schema1 Express1 Express Openapi1 REST API1 Charset Conversion1 Charset Detection1 Charset Detector1 Detector1 Normalization1 Detect1 Zlib Port1 Repair1 Fix1 Invalid1 Coffeescript1 Node JS1 Tar1 Tarfile1 Toml Serializer1 Toml Stringify1 Sheetjs1 Xlsm1 Dbf1 Dif1 Protoc Plugin1 Typescipt1 Hmac1 Itsdangerous1 Pallets1 Security1 Openapi21 Hacktoberfest20201 W3c1 Domparser1 Xmlserializer1 Ponyfill1 Toml Parsing1 Uncompress1 Chrono1 Macros1 Lz1 Cdf1 Atob1 Btoa1 Libreoffice1 Msexcel1 Openxml1 JSON Repair1 LLM Output1 Malformed JSON1 Structured Output1 Repair1 Parser1 Toml1 Crates Rmp1 Rmp1 Byte1 IP Address1 Maxmind DB1 Process1 Send1 Cause1 Node Module1 Rfc41801 Converter1 JSON 2 Csv1 Csv 2 JSON1 Media Extensions1 Syntax Tree1 Tostring1 Laravel 5 Package1 Laravel Package1 Phpoffice1 Batch1 Phpexcel1 Phpspreadsheet1 Config Loader1 Configuration File1 Configuration Management1 Etcd Client1 Golang Package1 S3 Bucket1 Viper1 Csv Document1 Csv Filter1 Csv Query1 Read1 Write1 Flat1 Split1 Nested1 Performance XML1 Pull Parser1 Rss Feed1 Rss Parser1 Rss Reader1 Rss to json1 Rss reader1 Rss parser1 Rss to js1 Feed reader1 JSON Feed1 Blog1 Etree1 Audio1 Wav1 Wave1 Lossless1 Long1 Bigint1 Bignumber1 Number1 Date1 Json.stringify1 Rust URL1 Elm1 Graphql1 Kotlin1 Objective C1 Swift1 Configuration Language1 Hashicorp1 Hcl1 Diffing1 Jsondiffpatch1 Text Diff1 Big Data1 Ansi1 Forms1 Convert JS1 JSON Converter1 JSON XML1 XML JS1 Cdata1 Doctype1 Processing instruction1 Javascript1 Transforming1 Converting1 JSON Ld1 Knowledge Graph1 Ontology1 Schema Org1 Schemaorg1 Typescript Definitions1 Tsd1 Dts1 Schema.org1 Semantic web1 Linked data1 Jsonld1 JSON Ld1 Structured data1 Pegjs1 Parser generator1 Peg1 Peg.js1 Brotli Compression1 Brotli Compressor1 Brotli Decompressor1 Brotli Encoder1 Compressor1 Rustlang1 Huffman1 Lz771 Feeds1 Clone1 Strip1 Remove1 Delete1 Trim1 Multiline1 Settings1 Environment1 Topojson1 Topology1 Deterministic1 Hash1 Stub1 Typing1 Runc1 Mapping1 Cobs1 Framing1 Documents1 Tree1 Google1 Toml Stringifier1 Stringifer1 Emitter1 Tomlify1 Binary161 Float161 Floating Point1 Rust Embedded1 Base32hex1 Base64url1 Unidiff1 Scim1 Gguf1 Llama.cpp1 C Plus Plus1 C Sharp1 Cross Platform1 Flatbuffers1 Mmap1 Serialization Library1 Actionscript1 D1 Dart1 Network Client1 Network Server1 Ultrajson1 Cli Tool1 Cli Utility1 Databricks1 Delta Lake1 Pandas Dataframe1 Deltalake1 Datalake1 Oasv31 Openapi Spec1 Openapi Specification1 Openapi3 11 Openapi3 Validation1 Swagger API1 Swagger21 Columnar Format1 Parquet Files1 Draft 71 Rust Wasm1 Python JSON1 Extension1 Orjson1 Rfc69021 CMS1 Crl1 Csr1 Ocsp1 Pem1 Pkcs121 Pkcs71 Tsp1 X5091 Asn1 crypto pki x509 certificate rsa dsa ec dh1 Interactive1 Interpreter1 Shell1 Web1 Create1 Eslint1 Eslintplugin1 Lint1 Napi1 Node API1 Snap1 Napi1 N API1 Rust1 Node API1 Node Addon1 Node Addon API1 Jsonpointer1 Rfc69011 Comments JSON1 Rfc35481 Crockford1 Base1 Npm1 Rrule1 Pretty1 Print1 Pretty Print1 Indent1 Xml:space1 Preserve1 Pg1 Postgres1 Hstore1 Serde JSON1 Json_path1 Serde_json1 Rkyv1 League1 Memory1 Memory Safety1 Cast1 Transmutation1 Type Punning1 Apis1 Gnostic1 Linters1 Rewriting1 Rewriter1 Binding Generator1 Rust To Typescript1 Ts Rs1 Csv writer1 Csv1 Traversal1 Data structures1 Drf restframework rest_framework django_rest_framework serializers drf_writable_nested1 2d1 Mapbox Vector Tile1 Codegen1 Vitess1 Cbor Library1 Cwt1 JSON Alternative1 Rfc 87421 Rfc 89491 Std 941 Tinygo1 Iso86011 Erasure1 Yml1 Spyc1 Schedule1 Spatie1 Apple1 Mac1 Attachments1 Mlops1 Scikit Learn1 Avro Codec1 Encoder Decoder1 Drf1 Restframework1 Restframework Serializer1 Domain1 Cross Industry Invoice1 Electronic Invoices1 Electronic Invoicing1 En169311 Php71 Php81 Zugferd1 Invoice1 Electronic1 Zugferd1 Xmlbuilder1 Fonteditor1 Otfread1 Sfnt1 Font1 Editor1 Enum1 Redact1 Censor1 Performant1 Gdpr1 Speed1 Container1 Runtime1 IP1 Sourcemap1 Sourcemaps1 Bitcoin1 Crypto1 Crytography1 Litecoin1 Query Language1 Dockerfile1 Catalog1 Gettext1 Pofile1 Bzip21 Bz21 Command Line Parser1 Command Line Tool1 Sorting1 Toml Sort1 Unix1 Chalk1 Syntax Highlighting1 Colorize1 Console1 Keyv1 Cache1 Asynchronous1 Joi1 Humantime1 Duration1 Time1 Prometheus1 Lz String1 Pest1 Configs1 Data Format1 Pytorch1 Safetensors1 Tensorflow1 Tensors1 Database Schema1 Dbx1 Dbml Core1 Import Export1 Deserializer1 Opendocument Spreadsheet1 Vba1 Jaxb1 Packrat1 Language1 Composer Package1 Stylesheet1 Ebook1 Interface Types1 Module Linking1 Wasi1 Wasmtime1 Bitfields1 Bitvec1 Lakehouse1 Table Format1 Csv Export1 Csv Files1 Csv Import1 Csv Reader1 Csv Reading1 Data Analysis1 Data Mining1 Data Science1 Datascience1 JSON Iterator1 JSON Stream1 Stream Processing1 Bsd 3 Clause1 Objectstorage1 Postman Collection1 Postman1 Behat1 Dsl1 Gherkin Parser1 Bdd1 Dsl1 Behat1 Cucumber1 12 Factor1 Envy1 3d Tiles1 Las1 Loaders1 Loader1 Big data1 Table1 Mesh1 Point cloud1 Webgl1 Webgpu1 Coff1 Elf1 Mach O1 Pe1 Atom1 Podcast1 Transit Format1 Es61 Harmony1 Map1 Float1 Search1 Djangorestframework_camel_case1 Opengl1 Pbr1 Scene1 Asset1 Model1 Pandoc1 Email Parser1 Email Reader1 Mail Parser1 Mailmimeparser1 Mime Parser1 Mail1 Mailparse1 Mimemailparser1 Mimeparse1 Iter1 Json jsonc rapidjson1 Xmlreader1 Xmlwriter1 Xmlreader1 Xmlwriter1 Vcard PHP1 Vcard1 .vcf1 Python 21 Python 31 Microsoft Pdb1 Pdb1 Client1 K8s1 Kubernetes1 Human1 Pure1 Parallelism1 Analytics1 Aper1 Coer1 Encoding Formats1 Encoding Rules1 Jer1 Oer1 Uper1 Per1 Qt1 Reader1 Iso Mp41 Multimedia1 Cloudevents1 Cloudevents Schema1 Cloudnative1 Cncf1 Cloudevents1 Eventing1 Serverless1 Resiliency1 Malformed1 Javascript Library1 Pki1 Asn.11 Sequence1 Bitstring1 Octetstring1 Utctime1 Utf8string1 Bmpstring1 Universalstring1 Generalizedtime1 Hateoas1 Miniz1 Bigquery1 Bigquery Schema1 Google Bigquery1 Internationalization1 Fluent1 API Documentation1 API Documentation Tool1 Typescript Validation1 Class Validator1 Packet1 Encodings1 Abstract Encoding1 Citation JS1 Citation1 Bibliography1 V31 Headers1 Hyperium1 S Expressions1 Sexpr1 Sexp1 Lisp1 Sqlalchemy1 Orm1 Mutation Tracking1 Sqlalchemy json mutable1 Looker1 Lookml1 Lookml looker parser1 Django pickle model field1 Traceback1 Exceptions1 Exporter1 Cpython1 Bitset Library1 Roaring Bitmaps1 Roaringbitmap1 Sax1 Log1 Logfmt1 Cheeriojs1 Htmlparser21 Render1 Winding1 Order1 Rendering1 Coordinates1 Ogg1 Xiph1 Tool1 Xmljson1 Ieee 7541 Floating point1 Compiler1 Amazon Ses1 Attachment1 Email Attachments1 Email Message Header1 Email Parsing1 Mimetext1 Nodejs Library1 Rfc 53221 Rfc 20461 Rfc 20471 Rfc 20481 Email Message1 Deprecated1 Noyalib1 Base641 Piping1 Elementtree1 Lxml1 Pratt Parser1 Xpath Selector1 Xpath21 Xpath31 Xpath311 Liblzma1 Lzma1 Xz1 Avro Schema1 Oas31 Jsonpatch1 Json patch1 Json path1 Json pointer1 Rfc 95351 Bigint1 Es61 Map1 Set1 Typedarray1 Database persistence pickle ipc shelve1 Endianness1 Zigzag1 Untagged1 Cfb1 Configparser1 Conf1 Cfg1 Gray Matter Rs1 Gray Matter Rust1 Well Known Text1 Multibase1 Multiformats1 Cid1 Ipld1 Multihash1 Caldav1 Carddav1 Vcalendar1 Vcard Parser1 Vcf Files1 Vobject1 Vcs1 Hcalendar1 Concurrent Programming1 Error Handling1 Error Messages1 Rtf1 69011 Rfc 69011 Models1 Python pydantic validation parsing serialization models1 Mendoza1 Legacy1 Legacy Encoding1 Ansi_x3.4 19681 Cp12521 Cp8191 Csisolatin11 Ibm8191 Iso 8859 11 Iso Ir 1001 Iso8859 11 Iso885911 Iso_8859 11 Iso_8859 1:19871 L11 Latin11 Us Ascii1 Windows 12521 X Cp12521 C Extension1 Pure Python1 Ubj1 Cvs Diff1 Git Diff1 Git1 Hg1 Svn1 Java property properties file parser reader writer1 Encode,1 Decode,1 Text,1 Chunk,1 Png,1 Image,1 Metadata,1 Hiding,1 Format1 Sanity IO1 Mutation1 Compare1 Bing Webmaster1 Google Search Console1 SEO1 SEO Optimization1 SEO Tools1 Sitemap Generator1 Image Sitemap1 Index Sitemap1 News Sitemap1 Video Sitemap1 Ansi Colors1 Coloured1 Colour1 Colored1 Coap1 Asm1 Asm.js1 Openapi1 Microsoft1 Graph1 Ast1 Ast1 Small1 Crdt1 Loro Crdt1 Crdt1 Immutable1 Sstable1 Cab1 Cabinet1 Windows1 React Native1 Ios1 Android1 Internet1 Media1 Media Type1 Escape1 Ms Oxmsg1 Slog1 Logging1 Mutations1 Minimalist1 Nextcloud1 Enent Source1 Eventsource1 Server Send Event1 HTTP Client1 Haproxy1 Protocol1 Proxy1 Params1 Filtering1 Path1 Anyhow1 Failure1 Framework1 Upf1 Utopia1 Donotuseme1 Dds1 Universal1 Vscode1 Studio1 Theme1 Code1 Visual1 Bumpalo1 Collections1 Geography1 Zerocopy1 Fetch1 Node Fetch1
Sort:Used by Most Apps
Showing 487 packages
75Health
Library Cargo

serde_json

The de facto standard JSON library for Rust, built on the Serde serialization framework

5,636
Apache 2.0
Used by 111
76Health
Library Cargo

serde

A generic framework for serializing and deserializing Rust data structures efficiently and safely.

10,825
Other
Used by 108
82Health
Library npm

js-yaml

A fast, complete YAML 1.2 and 1.1 parser and serializer for JavaScript.

6,630
MIT
Used by 101
90Health
Library npm

yaml

A definitive TypeScript parser and stringifier for YAML, supporting 1.1 and 1.2 with comment and CST access.

1,691
Other
Used by 98
55Health
Library PyPI

PyYAML

A full-featured YAML parser and emitter for Python, with C-accelerated bindings

2,942
MIT
Used by 79
67Health
Library Cargo

base64

Correct, fast, and configurable base64 encoding and decoding for Rust, with pluggable alphabets and padding.

736
Apache 2.0
Used by 66
69Health
Library npm

JSZip

Create, read, and edit ZIP files directly in JavaScript, in the browser or Node.js.

10,383
Other
Used by 65
66Health
Library Cargo

url

A WHATWG-standard-compliant URL parser and manipulation library for Rust.

1,576
Apache 2.0
Used by 62
81Health
Library npm

PapaParse

The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies

13,568
MIT
Used by 61
85Health
Library Cargo

uuid

Generate and parse UUIDs in Rust across every standardized version, from v1 to v8.

1,242
Other
Used by 56
75Health
Library npm

qs

A battle-tested querystring parser and serializer for Node.js with nested object support and built-in security limits.

8,940
BSD 3
Used by 49
65Health
Library PyPI

python-multipart

A fast, streaming multipart/form-data parser for Python that powers file uploads in FastAPI and Starlette.

531
Apache 2.0
Used by 43
44Health
Library npm

buffer

The Node.js Buffer API, reimplemented for the browser on top of Uint8Array.

1,891
MIT
Used by 42
51Health
Library npm

mime-types

The ultimate JavaScript content-type utility for resolving MIME types from file extensions and paths.

1,475
MIT
Used by 41
84Health
Library npm

body-parser

Node.js body-parsing middleware that turns raw HTTP request bodies into ready-to-use req.body objects.

5,499
MIT
Used by 36

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