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Instead of Stalwart mail-parser
Stalwart mail-parser alternatives
Stalwart mail-parser is a free, open-source Rust library for parsing email. It handles RFC 5322 messages, MIME, and related internet messaging standards, and can return a MIME tree, text and HTML bodies, and attachments. It also converts between HTML and plain text when one format is absent. Its lazy decoding and SIMD scanning support a performance-focused design, while its compatibility handling aims to accommodate messages that stray modestly from standards.
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PHP MIME Mail Parser
Free plan LinuxMacSelf-hosted+1PHP applications handling MIME email and attachments — PHP MIME Mail Parser wraps the mailparse extension and offers PHP-oriented inputs, header extraction, and attachment handling.
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CloudMailin
Free plan APIWebApps that need inbound email delivered by webhook — CloudMailin receives email and delivers it as JSON, multipart form data, or raw text, and also provides outbound transactional email.
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DigiParser
Free plan AndroidAPIiPhone+1Extracting structured fields from email and documents — DigiParser uses AI and OCR to extract user-defined data from emails, PDFs, and images rather than focusing on MIME structure.
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Document Parser
Free plan WebTurning forwarded emails and files into spreadsheet data — Document Parser extracts structured fields from forwarded emails, attachments, and uploaded files, with spreadsheet, Excel, and JSON exports.
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MailFrame
Free plan APIWebSchema-validated JSON extraction from raw email — MailFrame returns typed, schema-validated JSON synchronously from raw email using inline or prebuilt schemas.
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MailParse
Free plan APIWebHosted inbound email parsing with delivery controls — MailParse combines hosted MIME parsing with webhook or polling delivery, SPF, DKIM and DMARC validation, spam scoring, and replay.
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noima
Free plan APIWebExtracting data from emails and varied document files — noima extracts requested data from emails, PDFs, scans, and spreadsheets into structured exports through an API or workspace.
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Parserr
Free plan APIWeb - 9
Parseur
Free plan APIWeb - 10
Parsio Receipt OCR
Free plan APIWeb - 11
Posta
Free plan APISelf-hostedWeb - 12
Parsli
Free plan APIWeb - 13
EmailEngine
Free trial APILinuxMac+3 - 14
Airparser
Free trial APIWeb - 15
Email Parser
Free trial APIWebWindows - 16
MailParse
Free trial APILinuxMac+3 - 17
Mailparser
Free trial APIWeb - 18
OptiExtract
Free trial APIWeb5.8 Visit site - 19
inbound
Paid APIWeb - 20
Dewmail
Paid APISelf-hosted - 21
ITG Email Parser
Paid WebWindows
A different choice may fit better if you need a PHP package, a hosted service, or extraction of business data rather than a Rust parsing library. Stalwart mail-parser is self-hosted on Linux and macOS, requires Rust 1.98 or later, and does not build messages; its optional features are not enabled by default. Compare the alternatives by input types, output structure, delivery method, and whether you want to manage a library or use an API or web service. Also weigh each product’s stated price and platform against your workflow.
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