diff --git a/test/dictionary-validate.js b/test/dictionary-validate.js
new file mode 100644
index 00000000..971c4971
--- /dev/null
+++ b/test/dictionary-validate.js
@@ -0,0 +1,90 @@
+const fs = require('fs');
+const path = require('path');
+
+process.noDeprecation = true; // Suppress a warning about JSZip
+const JSZip = require(path.join(__dirname, '../ext/mixed/lib/jszip.min.js'));
+process.noDeprecation = false;
+
+const jsonSchemaFileName = path.join(__dirname, '../ext/bg/js/json-schema.js');
+const jsonSchemaFileSource = fs.readFileSync(jsonSchemaFileName, {encoding: 'utf8'});
+const JsonSchema = Function(`'use strict';${jsonSchemaFileSource};return JsonSchema;`)();
+
+
+function readSchema(relativeFileName) {
+    const fileName = path.join(__dirname, relativeFileName);
+    const source = fs.readFileSync(fileName, {encoding: 'utf8'});
+    return JSON.parse(source);
+}
+
+
+async function validateDictionaryBanks(zip, fileNameFormat, schema) {
+    let index = 1;
+    while (true) {
+        const fileName = fileNameFormat.replace(/%s/, index);
+
+        const file = zip.files[fileName];
+        if (!file) { break; }
+
+        const data = JSON.parse(await file.async('string'));
+        JsonSchema.validate(data, schema);
+
+        ++index;
+    }
+}
+
+async function validateDictionary(fileName, schemas) {
+    const source = fs.readFileSync(fileName);
+    const zip = await JSZip.loadAsync(source);
+
+    const indexFile = zip.files['index.json'];
+    if (!indexFile) {
+        throw new Error('No dictionary index found in archive');
+    }
+
+    const index = JSON.parse(await indexFile.async('string'));
+    const version = index.format || index.version;
+
+    JsonSchema.validate(index, schemas.index);
+
+    await validateDictionaryBanks(zip, 'term_bank_%s.json', version === 1 ? schemas.termBankV1 : schemas.termBankV3);
+    await validateDictionaryBanks(zip, 'term_meta_bank_%s.json', schemas.termMetaBankV3);
+    await validateDictionaryBanks(zip, 'kanji_bank_%s.json', version === 1 ? schemas.kanjiBankV1 : schemas.kanjiBankV3);
+    await validateDictionaryBanks(zip, 'kanji_meta_bank_%s.json', schemas.kanjiMetaBankV3);
+    await validateDictionaryBanks(zip, 'tag_bank_%s.json', schemas.tagBankV3);
+}
+
+
+async function main() {
+    const dictionaryFileNames = process.argv.slice(2);
+    if (dictionaryFileNames.length === 0) {
+        console.log([
+            'Usage:',
+            '  node dictionary-validate <dictionary-file-names>...'
+        ].join('\n'));
+        return;
+    }
+
+    const schemas = {
+        index: readSchema('../ext/bg/data/dictionary-index-schema.json'),
+        kanjiBankV1: readSchema('../ext/bg/data/dictionary-kanji-bank-v1-schema.json'),
+        kanjiBankV3: readSchema('../ext/bg/data/dictionary-kanji-bank-v3-schema.json'),
+        kanjiMetaBankV3: readSchema('../ext/bg/data/dictionary-kanji-meta-bank-v3-schema.json'),
+        tagBankV3: readSchema('../ext/bg/data/dictionary-tag-bank-v3-schema.json'),
+        termBankV1: readSchema('../ext/bg/data/dictionary-term-bank-v1-schema.json'),
+        termBankV3: readSchema('../ext/bg/data/dictionary-term-bank-v3-schema.json'),
+        termMetaBankV3: readSchema('../ext/bg/data/dictionary-term-meta-bank-v3-schema.json')
+    };
+
+    for (const dictionaryFileName of dictionaryFileNames) {
+        try {
+            console.log(`Validating ${dictionaryFileName}...`);
+            await validateDictionary(dictionaryFileName, schemas);
+            console.log('No issues found');
+        } catch (e) {
+            console.warn(e);
+        }
+    }
+}
+
+
+main();