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KH Coder

Free plan Open source LinuxMacSelf-hostedWindows

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KH Coder's own site

What KH Coder is

KH Coder is software for quantitative content analysis, text mining, and computational linguistics. It can be applied to material such as open-ended survey answers, interview records, and newspaper articles. Its analysis options include word counts, keyword searches, KWIC, cluster analysis, multidimensional scaling, co-occurrence networks, correspondence analysis, self-organizing maps, and coding cross-tabulations. Visual outputs include networks using betweenness centrality and community detection, plus correspondence-analysis plots, heatmaps, line charts, and bubble plots. The maker says statistical results can be examined alongside their source text, and analysis can run offline to help reduce data-leakage and ethics risks. The English site lists text support for Catalan, Simplified Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Slovenian, and Spanish. It runs on Linux, macOS, and Windows and can be customized by editing R and MySQL code. The free Windows Starting Edition limits analyzable data and some features and is described as an older beta. The Mac Edition costs $99, paid once and requires Apple silicon, macOS 11 or later, and 5 GB of available disk space.

Who it suits

KH Coder suits researchers and analysts working with textual data who need statistical and visual analysis while retaining source-text context. Mac users need an Apple silicon computer, and Windows users should account for the limits of the free Starting Edition.

What it does well

  • Supports analysis across 13 listed text languages
  • Can run analysis without an internet connection
  • Offers multiple text-analysis and visualization methods
  • Source text can be viewed alongside statistical analyses
  • Runs on Linux, macOS, and Windows

What to know first

  • Free Windows edition limits data and features
  • Starting Edition is described as an older beta
  • Mac Edition requires Apple silicon and 5 GB free space
  • Mac app requires one-time approval in System Settings

Limits

The free Windows Starting Edition limits analyzable data and some features and is an older beta. The 99.00 USD Mac Edition requires Apple silicon, macOS 11 or later, 5 GB of available disk space, and one purchased copy per computer.

Plans

PlanBilled and limitsPrice
Starting EditionWindows beta/demo · limited data and features · 1 PCFree
Update subscription (academic)¥18,480(税込) per year · Version updates while subscription is active · academic eligibility¥18,480 a year
Master Edition (normal)¥196,900(税込) · Windows · full analysis · 2 PCs · installation support · one seminar seat¥196,900, paid once
Base Edition (academic)¥24,750(税込) · Eligible educational users · Windows · 2 PCs¥24,750, paid once
Pro Edition (normal)¥396,000(税込) · Windows · full analysis · 2 PCs · installation support · seminar seat · six Q&A contacts per year¥396,000, paid once
Update subscription (normal)¥43,780(税込) per year · Version updates while subscription is active¥43,780 a year
Base Edition (normal)¥59,950(税込); one-year updates included · Windows · full analysis · 2 PCs · one-year update service¥59,950, paid once
Master Edition (academic)¥69,850(税込) · Eligible educational users · Windows · 2 PCs · installation support · seminar seat¥69,850, paid once

The first 8 of 9 plans, as khcoder.net lists them, read 15 Oct 2026. The maker's own page has the final word. Every plan

Getting started

  1. Visit the KH Coder website.
  2. Choose the edition for Windows, Linux, or macOS.
  3. For the Mac Edition, use an Apple silicon Mac with macOS 11 or later and 5 GB of available disk space.
  4. Review the Starting Edition limits or the Mac Edition license terms before choosing a plan.

KH Coder is a desktop application for quantitative content analysis, text mining, and computational linguistics. It is best suited to researchers handling survey responses, interviews, news, and similar text who need statistical methods without losing sight of the original passages. Its breadth and offline operation are compelling, but edition-specific limits and requirements deserve attention before purchase.

Overview

KH Coder links numerical analysis with the source text behind each result. That makes it useful when counts and patterns need to be interpreted in context, rather than treated as a purely abstract dataset. Processing can take place without an internet connection, a practical fit for sensitive interviews, free-response surveys, or other material where reducing data-leakage and ethics risks matters.

The application supports Catalan, Simplified Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Slovenian, and Spanish text. It is a specialist text-analysis environment rather than a general-purpose AI suite: topic analysis is supported, while sentiment analysis, entity extraction, and intent detection are not.

Key features

The method set covers word-frequency lists, keyword searches, KWIC views, cluster analysis, multidimensional scaling, co-occurrence networks, correspondence analysis, self-organizing maps, and coding cross-tabulations. This gives researchers several ways to move from basic vocabulary counts to relationships among terms, documents, and coded categories.

Its visual output includes networks showing betweenness centrality and community detection, correspondence-analysis plots, heatmaps, line charts, and bubble plots. These views can make structure in a corpus easier to inspect, while the source-text linkage provides a route back to the passages that produced a pattern. Users with programming experience can also customize the software by editing R and MySQL code. That is a meaningful extension point, but it makes KH Coder a better fit for technically confident teams than for buyers seeking a tightly guided, no-code workflow.

The listed backend programs include ChaSen, FreeLing, HanDic, MeCab, MySQL, Perl, R, Snowball Stemmer, Stanford POS Tagger, and TermExtract. Documentation and help are supplied through a tutorial, video, PDF slides, reference manual, and GitHub Discussions for questions and error reports.

Pricing

KH Coder uses a freemium model. The Starting Edition costs nothing on Windows, but limits analyzable data and some features and is described as an older beta version. It is suitable for trying the workflow or working with modest projects; it is a poor choice when the full method set or larger datasets are essential.

The KH Coder 5 Mac Edition costs 99.00 USD once. It is the paid edition for Apple silicon Macs and requires an M1 or later processor, macOS 11 or later, and 5 GB of available disk space. The license prohibits redistribution and requires a separate copy for each computer, so organizations should budget per machine rather than assume a shared installation. There is no recurring term stated for this edition.

Platforms

KH Coder is offered for Linux, macOS, and Windows, with deployment on premises. Windows users should distinguish the constrained free Starting Edition from the paid Base Edition, which is presented as the full version. Mac users need Apple silicon hardware, the stated macOS version, and disk capacity. Because the Mac app is not notarized by Apple, its first launch requires one-time approval in macOS System Settings.

Who it's for

Choose KH Coder for corpus work that combines statistical exploration with close reading: academic research, interview analysis, open-ended survey responses, newspaper studies, and comparable projects. It is especially attractive when offline processing is important or when multilingual text is involved. Look elsewhere if your core requirement is sentiment scoring, named-entity extraction, intent detection, or a hosted collaborative service.

Pros and cons

Pros

  • Broad analytical coverage: frequency, clustering, networks, correspondence methods, maps, and coding tables support varied research designs.
  • Context alongside statistics: results can be considered with the passages that generated them.
  • Offline operation: on-premise analysis can reduce exposure of sensitive text.
  • Multilingual support: the listed language coverage suits international corpora.
  • Extensible backend: R and MySQL editing offers customization beyond the standard workflow.

Cons

  • Windows free-edition constraints: data and feature limits, plus its older beta status, can block serious projects.
  • Mac hardware and per-computer terms: Apple silicon is required and each computer needs its own copy.
  • Technical learning curve: code-level customization favors users comfortable with R and MySQL.
  • No sentiment, entity, or intent tools: those tasks require another product or workflow.

Alternatives

CATMA is a free option for qualitative text work across desktop, web, API, and self-hosted platforms; choose it when annotation and collaboration matter more than massive quantitative or statistical analysis.

spaCy is a free developer-oriented choice for Linux, macOS, Windows, and self-hosted deployments; pick it when you want a programming toolkit for natural-language processing.

Taguette is free on desktop, web, or self-hosted setups; it fits readers prioritizing document tagging and qualitative organization.

Voyant Tools is a free text-analysis environment with a hosted web app and downloadable local server, making it preferable when browser access or a local-server model is more convenient.

MAXQDA is a paid macOS and Windows package with a free trial; consider it when a commercial qualitative-analysis application is the priority.

QualCoder is free and open source for Linux, macOS, and Windows; choose it for qualitative analysis, noting that optional AI features may require a separate provider account or paid usage.

Transana is a paid macOS and Windows product with a limited demo and trial; it is an alternative for readers who want that commercial workflow.

Dovetail is a freemium web and API platform; its free plan covers one channel and one project, so it suits smaller hosted projects rather than KH Coder's offline corpus analysis.

Verdict

KH Coder is a strong choice for researchers who need a wide quantitative text-analysis toolkit, multilingual handling, and offline access to the passages behind statistical results. Choose it when analytical range and data locality outweigh convenience. Look elsewhere if you need built-in sentiment, entity, or intent analysis, a fully guided workflow, or a less restrictive Windows or Mac licensing path.

Verdict

KH Coder covers a broad range of text-analysis methods and can keep results tied to their textual context. Check the Windows edition limits or Mac system and licensing requirements before selecting a version.

Questions

Is KH Coder free?

The Windows Starting Edition is free. It has limits on analyzable data and some features and is described as an older beta.

How much does the Mac Edition cost?

The KH Coder 5 Mac Edition costs 99.00 USD once.

Which operating systems does KH Coder support?

KH Coder is available for Linux, macOS, and Windows. The Mac Edition requires an Apple silicon Mac and macOS 11 or later.

What kinds of text can it analyze?

Use cases include free-response survey answers, interview records, newspaper articles, and other text.

Can KH Coder run offline?

Yes. Analysis does not require an internet connection.

Can users customize KH Coder?

Users can customize it by editing R and MySQL code when needed.

Facts from KH Coder's own pages

Analysis features
The gallery shows word frequency lists, keyword searches, KWIC, cluster analysis, multidimensional scaling, co-occurrence networks, correspondence analysis, self-organizing maps, and coding cross-tabulations. · khcoder.net, 7 Oct 2026
Analysis workflow
The maker says statistical analyses can be viewed alongside their source-text context, and that analysis does not require an internet connection to reduce data-leakage and ethics risks. · khcoder.net, 7 Oct 2026
Backend integrations
The maker lists ChaSen, FreeLing, HanDic, MeCab, MySQL, Perl, R, Snowball Stemmer, Stanford POS Tagger, and TermExtract among its backend programs. · khcoder.net, 7 Oct 2026
Coding
Coding rules support code frequencies, cross-tabs, similarity matrices, correspondence analysis, multidimensional scaling, clustering, and co-occurrence networks. · khcoder.net, 15 Oct 2026
Company and owner
The official site credits Koichi Higuchi, a Ritsumeikan University professor, as the author; the footer shows copyright beginning in 2001. · khcoder.net, 15 Oct 2026
Customization
The maker says users can customize KH Coder by editing R and MySQL code when needed. · khcoder.net, 7 Oct 2026
Distribution change
SCREEN Advanced System Solutions announced the paid official package in December 2023 after Higuchi said one-person development, maintenance, and support had become unsustainable. · prtimes.jp, 15 Oct 2026
Document analysis
Document tools include document search, document clustering, Naive Bayes model building/classification, and export of document-word or word-context matrices. · khcoder.net, 15 Oct 2026
Documentation
Official support includes a tutorial, video, PDF slides, a 99-page reference manual, GitHub Discussions, and an archived forum. · khcoder.net, 15 Oct 2026
Extensibility
The software exposes plugin examples, lets users execute SQL statements, and documents direct retrieval from its MySQL databases. · khcoder.net, 15 Oct 2026
Independent technical assessment
A Nature research article describes KH Coder as open source, using R and MySQL, with word-frequency, cross-tabulation, co-occurrence, multivariate analysis, multilingual processing, and term-variant search. · nature.com, 15 Oct 2026
Integrations
KH Coder delegates database work to MySQL and statistical analysis and graphics to R; Windows packages bundle these dependencies. · khcoder.net, 15 Oct 2026
KWIC and search
Users can search words and documents and inspect KWIC concordance lines with collocation statistics. · khcoder.net, 15 Oct 2026
Languages
The maker lists Catalan, simplified Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Slovenian, and Spanish support. · khcoder.net, 15 Oct 2026
Licence
The KH Coder core is free software under GNU GPL version 2 or later, permitting academic or commercial use, modification, and redistribution under GPL conditions. · khcoder.net, 15 Oct 2026
Licence caveat
The maker says that since December 2023 the installer and some bundled utilities are proprietary and cannot be reverse engineered or redistributed. · khcoder.net, 15 Oct 2026
Limit: encoding and scale
SourceForge reviewers report BOM or POS-tagger failures with some English files and possible hangs on very long texts. · sourceforge.net, 15 Oct 2026
Limit: interface and setup
SourceForge complaints mention an old-fashioned interface, difficult installation, paid Mac setup, and no automatic update facility. · sourceforge.net, 15 Oct 2026
Limit: learning curve
ITreview reviewers ask for fuller tutorials and explanations of what statistical algorithm outputs mean, despite finding basic use manageable. · itreview.jp, 15 Oct 2026
Linux requirements
Linux users must supply MySQL and Perl; R is needed for many analyses, while Japanese processing needs ChaSen or MeCab and English processing needs Stanford POS Tagger and Java. · khcoder.net, 15 Oct 2026
Mac license
The Mac Edition license says redistribution is prohibited and a separate copy must be purchased for each computer. · khcoder.net, 7 Oct 2026
macOS requirements
The Mac edition requires Apple Silicon M1 or later, macOS 11 or later, and 5 GB free disk space. · khcoder.net, 15 Oct 2026
Mac requirements
The Mac Edition requires an Apple silicon Mac (M1 or later), macOS 11 or later, and 5 GB of available disk space. · khcoder.net, 7 Oct 2026
Mac security limitation
The Mac application is not notarized, so macOS requires a one-time Privacy & Security approval before first launch. · khcoder.net, 15 Oct 2026

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