doc2json
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Nanonets alternatives

Nanonets is a full workflow platform priced per block run, which is a lot to set up and forecast if you only need JSON out of a file.

Quick answer

If you only need structured JSON from documents, doc2json is the cheaper, simpler pick: one credit per page, 50 free pages a month, listed plans from $9 a month, a REST API and an MCP server.

Try it in the PlaygroundSee pricing

Side by side

Nanonets and 4 other options

Listed prices in USD, checked 31 Oct 2026. Sources are at the bottom of the page.

ToolPriceFree planSchema or no schemaAPIMCPBest for
doc2jsonFree, then listed plans at $9, $29 and $79 a monthYes. 50 pages a month, no cardOptional. Send your own schema, or none and get the fields it findsREST API, JSON with optional Excel or CSVYes, hosted (parse_document tool)Developers and AI agents who want JSON from one call
Nanonets$50 in free credits, then $100 a month for 100 credits$50 in credits, no cardAI workflows built from blocksREST API, plus ERP integrations on GrowthNo hosted server listedFinance teams automating a whole process, like invoices into an ERP
ParseurFrom $49 a month for 100 pagesYes. 20 pages a monthAI engine (you name the fields) or templatesREST API, webhooks, Zapier, Make, Power AutomateYes, hostedEmail-driven workflows and non-developers
DocparserFrom $39 a month for 100 credits ($32.50 billed yearly)14-day free trial, no cardParsing rules per layout, plus an AI template that drafts themREST API, Excel, CSV, JSON, XML and integrationsNo official server listedOps teams with repeat layouts who like no-code rules
SensibleFrom $499 a month for 750 documents ($449 billed annually)14-day free trial, no cardConfigs: AI queries plus rule-based methods, with 150+ prebuiltREST API and SDKsYes, documented MCP serverTeams with high-volume, high-stakes documents like insurance forms

doc2json paid plans are the listed plans on the pricing page. Check it for what is open today.

Each tool

Strengths and trade-offs

Short and fair. Every tool here is a good pick for someone.

  • doc2json

    A small API that turns a PDF, PNG, JPEG or text into JSON. You pay per page, and a schema is optional.

    • 50 free pages a month with no card, and a Playground that works without an account.
    • One credit is one page, so cost is easy to predict.
    • Hosted MCP server, so an agent can parse a file with one tool call.
    • No email inbox, webhooks or Zapier app for documents.
    • No human review queue and no compliance certifications.

  • Nanonets

    A workflow platform for document-heavy teams. You build a pipeline from blocks (classify, extract, validate, format, export) and pay for each block run.

    • Covers the whole process, not just extraction: classification, validation and export.
    • ERP and database integrations on the Growth plan, aimed at accounts payable and order work.
    • Enterprise plan lists HIPAA, SOC 2, on-prem and SSO.
    • Per-block pricing is harder to predict. An AI extraction block is listed at $0.30 a run, and their own example invoice workflow runs 4 to 6 blocks.
    • More product than you need if you only want JSON back from a file.

  • Parseur

    A no-code parser built around mailboxes. You forward emails and attachments to Parseur, it pulls out the fields, and sends them on to your apps.

    • Email mailboxes are the core of the product, which suits order and lead emails.
    • Two engines: AI for varied layouts and templates for fixed ones.
    • A free plan, many integrations and a hosted MCP server.
    • Per-page price is high at low volume: $49 for 100 pages, $89 for 300.
    • Some features, such as Python post-processing, start at the 10,000-page plans.

  • Docparser

    A rule-based parser. You build parsing rules for a layout in the app, then send documents by upload, email, cloud storage or the REST API.

    • Rule builder with zonal OCR, anchor keywords and table extraction.
    • One credit covers a document of up to 5 pages.
    • Many ways out: Excel, CSV, JSON, XML, Google Sheets and integrations.
    • No free plan after the 14-day trial.
    • A new layout often means new rules, which takes time to maintain.

  • Sensible

    A document extraction platform that mixes AI with rule-based methods, aimed at production pipelines in insurance, finance and logistics.

    • 150+ prebuilt configurations for common industry documents.
    • Billed per document, not per page, which helps with long PDFs.
    • SOC 2 Type II and HIPAA are listed, and the team can run the extraction backend for you.
    • The first paid plan is $499 a month, with no free plan after the trial.
    • Configs take some setup, which is more than a quick project needs.

Why doc2json

One request, typed JSON back.

Send a file and a schema name to the REST API. You get the values back as JSON, and anything not in the document comes back as null instead of a guess.

  • One credit per page, and an image is one page.
  • The schema is optional. Leave it out to get the fields it finds.
  • The file is read for the parse and then dropped. Only a usage record is kept.
  • The same parse runs from an agent through the MCP server.
Open the PlaygroundRead the API docs
POST /api/v1/parse
curl -X POST https://doc2json.manoonlabs.com/api/v1/parse \
  -H "Authorization: Bearer $DOC2JSON_KEY" \
  -H "Content-Type: application/json" \
  -d "{\"file_base64\": \"$(base64 -w0 invoice.pdf)\", \"schema\": \"invoice\"}"

Honest fit

When not to pick doc2json

  • You want approvals, ERP posting and the rest of the accounts payable process in one product. Nanonets covers that, doc2json only extracts.
  • You need on-prem deployment or SSO. Nanonets lists both on its Enterprise plan.
  • You need HIPAA, a signed BAA or a compliance audit. doc2json does not hold compliance certifications.
  • You need a human review queue where people check and fix fields before they go downstream. doc2json returns JSON and leaves review to your code.

FAQ

Nanonets alternatives, answered.

What is a simpler alternative to Nanonets?

doc2json is one API call: send a file and an optional schema, get JSON back. There are no workflows or blocks to set up.

How does pricing compare?

Nanonets charges per block run, with AI extraction blocks listed at $0.30 a run and several blocks per document. doc2json charges one credit per page, with 50 free pages a month and listed plans at $9 for 300 pages, $29 for 1,500 and $79 for 5,000.

Can doc2json send data to my ERP?

Not directly. doc2json returns JSON, or Excel and CSV, and your code sends it on. Nanonets has ERP integrations on its Growth plan.

Can I try doc2json before signing up?

Yes. The Playground works without an account. Sign in when you want an API key or want to parse your own files at volume.

Prices checked 31 Oct 2026

Prices and features change. These are the pages we read.

More comparisons: all alternatives