diff --git a/.gitignore b/.gitignore
index 00cbbdf53..b620cc9dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,3 +57,5 @@ typings/
 # dotenv environment variables file
 .env
 
+.idea
+
diff --git a/compare.js b/compare.js
new file mode 100644
index 000000000..35eacf08b
--- /dev/null
+++ b/compare.js
@@ -0,0 +1,60 @@
+"use strict";
+
+require('colors');
+const jsdiff = require('diff');
+const sqlite = require('sqlite');
+const sql = require('./sql');
+
+function printDiff(one, two) {
+    const diff = jsdiff.diffChars(one, two);
+
+    diff.forEach(function(part){
+        // green for additions, red for deletions
+        // grey for common parts
+        const color = part.added ? 'green' :
+            part.removed ? 'red' : 'grey';
+        process.stderr.write(part.value[color]);
+    });
+}
+
+function compareRows(rs1, rs2) {
+    const len = Math.max(rs1.length, rs2.length);
+
+    for (let i = 0; i < len; i++) {
+        const r1 = JSON.stringify(rs1[i], null, 2);
+        const r2 = JSON.stringify(rs2[i], null, 2);
+
+        if (r1 !== r2) {
+            console.log("Row #" + i + " differs:");
+            console.log("First: ", r1);
+            console.log("Second: ", r2);
+            printDiff(r1, r2);
+            process.exit(1);
+        }
+    }
+}
+
+async function main() {
+    const db1Path = process.argv[2];
+    const db2Path = process.argv[3];
+
+    const db1 = await sqlite.open(db1Path, { Promise });
+    const db2 = await sqlite.open(db2Path, { Promise });
+
+    async function compare(query) {
+        const rs1 = await sql.getResults(db1, query);
+        const rs2 = await sql.getResults(db2, query);
+
+        compareRows(rs1, rs2);
+    }
+
+    await compare("SELECT note_id, note_title, note_text, date_modified, is_protected, is_deleted FROM notes ORDER BY note_id");
+}
+
+(async () => {
+    try {
+        await main();
+    } catch (e) {
+        console.error(e);
+    }
+})();
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 000000000..ccc6b7d16
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,743 @@
+{
+  "name": "trilium-db-compare",
+  "version": "0.0.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "colors": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.1.2.tgz",
+      "integrity": "sha1-FopHAXVran9RoSzgyXv6KMCE7WM="
+    },
+    "diff": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-3.4.0.tgz",
+      "integrity": "sha512-QpVuMTEoJMF7cKzi6bvWhRulU1fZqZnvyVQgNhPaxxuTYwyjn/j1v9falseQ/uXWwPnO56RBfwtg4h/EQXmucA=="
+    },
+    "nan": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.7.0.tgz",
+      "integrity": "sha1-2Vv3IeyHfgjbJ27T/G63j5CDrUY="
+    },
+    "sqlite": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/sqlite/-/sqlite-2.8.0.tgz",
+      "integrity": "sha1-rLbRhppSQcVwFsiGBuygCfDzG5A=",
+      "requires": {
+        "sqlite3": "3.1.13"
+      }
+    },
+    "sqlite3": {
+      "version": "3.1.13",
+      "resolved": "https://registry.npmjs.org/sqlite3/-/sqlite3-3.1.13.tgz",
+      "integrity": "sha512-JxXKPJnkZ6NuHRojq+g2WXWBt3M1G9sjZaYiHEWSTGijDM3cwju/0T2XbWqMXFmPqDgw+iB7zKQvnns4bvzXlw==",
+      "requires": {
+        "nan": "2.7.0",
+        "node-pre-gyp": "0.6.38"
+      },
+      "dependencies": {
+        "abbrev": {
+          "version": "1.1.1",
+          "bundled": true
+        },
+        "ajv": {
+          "version": "4.11.8",
+          "bundled": true,
+          "requires": {
+            "co": "4.6.0",
+            "json-stable-stringify": "1.0.1"
+          }
+        },
+        "ansi-regex": {
+          "version": "2.1.1",
+          "bundled": true
+        },
+        "aproba": {
+          "version": "1.2.0",
+          "bundled": true
+        },
+        "are-we-there-yet": {
+          "version": "1.1.4",
+          "bundled": true,
+          "requires": {
+            "delegates": "1.0.0",
+            "readable-stream": "2.3.3"
+          }
+        },
+        "asn1": {
+          "version": "0.2.3",
+          "bundled": true
+        },
+        "assert-plus": {
+          "version": "0.2.0",
+          "bundled": true
+        },
+        "asynckit": {
+          "version": "0.4.0",
+          "bundled": true
+        },
+        "aws-sign2": {
+          "version": "0.6.0",
+          "bundled": true
+        },
+        "aws4": {
+          "version": "1.6.0",
+          "bundled": true
+        },
+        "balanced-match": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "bcrypt-pbkdf": {
+          "version": "1.0.1",
+          "bundled": true,
+          "optional": true,
+          "requires": {
+            "tweetnacl": "0.14.5"
+          }
+        },
+        "block-stream": {
+          "version": "0.0.9",
+          "bundled": true,
+          "requires": {
+            "inherits": "2.0.3"
+          }
+        },
+        "boom": {
+          "version": "2.10.1",
+          "bundled": true,
+          "requires": {
+            "hoek": "2.16.3"
+          }
+        },
+        "brace-expansion": {
+          "version": "1.1.8",
+          "bundled": true,
+          "requires": {
+            "balanced-match": "1.0.0",
+            "concat-map": "0.0.1"
+          }
+        },
+        "caseless": {
+          "version": "0.12.0",
+          "bundled": true
+        },
+        "co": {
+          "version": "4.6.0",
+          "bundled": true
+        },
+        "code-point-at": {
+          "version": "1.1.0",
+          "bundled": true
+        },
+        "combined-stream": {
+          "version": "1.0.5",
+          "bundled": true,
+          "requires": {
+            "delayed-stream": "1.0.0"
+          }
+        },
+        "concat-map": {
+          "version": "0.0.1",
+          "bundled": true
+        },
+        "console-control-strings": {
+          "version": "1.1.0",
+          "bundled": true
+        },
+        "core-util-is": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "cryptiles": {
+          "version": "2.0.5",
+          "bundled": true,
+          "requires": {
+            "boom": "2.10.1"
+          }
+        },
+        "dashdash": {
+          "version": "1.14.1",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "1.0.0"
+          },
+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "debug": {
+          "version": "2.6.9",
+          "bundled": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "deep-extend": {
+          "version": "0.4.2",
+          "bundled": true
+        },
+        "delayed-stream": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "delegates": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "ecc-jsbn": {
+          "version": "0.1.1",
+          "bundled": true,
+          "optional": true,
+          "requires": {
+            "jsbn": "0.1.1"
+          }
+        },
+        "extend": {
+          "version": "3.0.1",
+          "bundled": true
+        },
+        "extsprintf": {
+          "version": "1.3.0",
+          "bundled": true
+        },
+        "forever-agent": {
+          "version": "0.6.1",
+          "bundled": true
+        },
+        "form-data": {
+          "version": "2.1.4",
+          "bundled": true,
+          "requires": {
+            "asynckit": "0.4.0",
+            "combined-stream": "1.0.5",
+            "mime-types": "2.1.17"
+          }
+        },
+        "fs.realpath": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "fstream": {
+          "version": "1.0.11",
+          "bundled": true,
+          "requires": {
+            "graceful-fs": "4.1.11",
+            "inherits": "2.0.3",
+            "mkdirp": "0.5.1",
+            "rimraf": "2.6.2"
+          }
+        },
+        "fstream-ignore": {
+          "version": "1.0.5",
+          "bundled": true,
+          "requires": {
+            "fstream": "1.0.11",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4"
+          }
+        },
+        "gauge": {
+          "version": "2.7.4",
+          "bundled": true,
+          "requires": {
+            "aproba": "1.2.0",
+            "console-control-strings": "1.1.0",
+            "has-unicode": "2.0.1",
+            "object-assign": "4.1.1",
+            "signal-exit": "3.0.2",
+            "string-width": "1.0.2",
+            "strip-ansi": "3.0.1",
+            "wide-align": "1.1.2"
+          }
+        },
+        "getpass": {
+          "version": "0.1.7",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "1.0.0"
+          },
+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "glob": {
+          "version": "7.1.2",
+          "bundled": true,
+          "requires": {
+            "fs.realpath": "1.0.0",
+            "inflight": "1.0.6",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4",
+            "once": "1.4.0",
+            "path-is-absolute": "1.0.1"
+          }
+        },
+        "graceful-fs": {
+          "version": "4.1.11",
+          "bundled": true
+        },
+        "har-schema": {
+          "version": "1.0.5",
+          "bundled": true
+        },
+        "har-validator": {
+          "version": "4.2.1",
+          "bundled": true,
+          "requires": {
+            "ajv": "4.11.8",
+            "har-schema": "1.0.5"
+          }
+        },
+        "has-unicode": {
+          "version": "2.0.1",
+          "bundled": true
+        },
+        "hawk": {
+          "version": "3.1.3",
+          "bundled": true,
+          "requires": {
+            "boom": "2.10.1",
+            "cryptiles": "2.0.5",
+            "hoek": "2.16.3",
+            "sntp": "1.0.9"
+          }
+        },
+        "hoek": {
+          "version": "2.16.3",
+          "bundled": true
+        },
+        "http-signature": {
+          "version": "1.1.1",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "0.2.0",
+            "jsprim": "1.4.1",
+            "sshpk": "1.13.1"
+          }
+        },
+        "inflight": {
+          "version": "1.0.6",
+          "bundled": true,
+          "requires": {
+            "once": "1.4.0",
+            "wrappy": "1.0.2"
+          }
+        },
+        "inherits": {
+          "version": "2.0.3",
+          "bundled": true
+        },
+        "ini": {
+          "version": "1.3.4",
+          "bundled": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "1.0.0",
+          "bundled": true,
+          "requires": {
+            "number-is-nan": "1.0.1"
+          }
+        },
+        "is-typedarray": {
+          "version": "1.0.0",
+          "bundled": true
+        },
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+          "version": "1.0.0",
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+        },
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+          "bundled": true
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+          "version": "0.1.1",
+          "bundled": true,
+          "optional": true
+        },
+        "json-schema": {
+          "version": "0.2.3",
+          "bundled": true
+        },
+        "json-stable-stringify": {
+          "version": "1.0.1",
+          "bundled": true,
+          "requires": {
+            "jsonify": "0.0.0"
+          }
+        },
+        "json-stringify-safe": {
+          "version": "5.0.1",
+          "bundled": true
+        },
+        "jsonify": {
+          "version": "0.0.0",
+          "bundled": true
+        },
+        "jsprim": {
+          "version": "1.4.1",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "1.0.0",
+            "extsprintf": "1.3.0",
+            "json-schema": "0.2.3",
+            "verror": "1.10.0"
+          },
+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "mime-db": {
+          "version": "1.30.0",
+          "bundled": true
+        },
+        "mime-types": {
+          "version": "2.1.17",
+          "bundled": true,
+          "requires": {
+            "mime-db": "1.30.0"
+          }
+        },
+        "minimatch": {
+          "version": "3.0.4",
+          "bundled": true,
+          "requires": {
+            "brace-expansion": "1.1.8"
+          }
+        },
+        "minimist": {
+          "version": "0.0.8",
+          "bundled": true
+        },
+        "mkdirp": {
+          "version": "0.5.1",
+          "bundled": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "bundled": true
+        },
+        "node-pre-gyp": {
+          "version": "0.6.38",
+          "bundled": true,
+          "requires": {
+            "hawk": "3.1.3",
+            "mkdirp": "0.5.1",
+            "nopt": "4.0.1",
+            "npmlog": "4.1.2",
+            "rc": "1.2.1",
+            "request": "2.81.0",
+            "rimraf": "2.6.2",
+            "semver": "5.4.1",
+            "tar": "2.2.1",
+            "tar-pack": "3.4.0"
+          }
+        },
+        "nopt": {
+          "version": "4.0.1",
+          "bundled": true,
+          "requires": {
+            "abbrev": "1.1.1",
+            "osenv": "0.1.4"
+          }
+        },
+        "npmlog": {
+          "version": "4.1.2",
+          "bundled": true,
+          "requires": {
+            "are-we-there-yet": "1.1.4",
+            "console-control-strings": "1.1.0",
+            "gauge": "2.7.4",
+            "set-blocking": "2.0.0"
+          }
+        },
+        "number-is-nan": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "oauth-sign": {
+          "version": "0.8.2",
+          "bundled": true
+        },
+        "object-assign": {
+          "version": "4.1.1",
+          "bundled": true
+        },
+        "once": {
+          "version": "1.4.0",
+          "bundled": true,
+          "requires": {
+            "wrappy": "1.0.2"
+          }
+        },
+        "os-homedir": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "os-tmpdir": {
+          "version": "1.0.2",
+          "bundled": true
+        },
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+          "version": "0.1.4",
+          "bundled": true,
+          "requires": {
+            "os-homedir": "1.0.2",
+            "os-tmpdir": "1.0.2"
+          }
+        },
+        "path-is-absolute": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "performance-now": {
+          "version": "0.2.0",
+          "bundled": true
+        },
+        "process-nextick-args": {
+          "version": "1.0.7",
+          "bundled": true
+        },
+        "punycode": {
+          "version": "1.4.1",
+          "bundled": true
+        },
+        "qs": {
+          "version": "6.4.0",
+          "bundled": true
+        },
+        "rc": {
+          "version": "1.2.1",
+          "bundled": true,
+          "requires": {
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+            "ini": "1.3.4",
+            "minimist": "1.2.0",
+            "strip-json-comments": "2.0.1"
+          },
+          "dependencies": {
+            "minimist": {
+              "version": "1.2.0",
+              "bundled": true
+            }
+          }
+        },
+        "readable-stream": {
+          "version": "2.3.3",
+          "bundled": true,
+          "requires": {
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+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "1.0.7",
+            "safe-buffer": "5.1.1",
+            "string_decoder": "1.0.3",
+            "util-deprecate": "1.0.2"
+          }
+        },
+        "request": {
+          "version": "2.81.0",
+          "bundled": true,
+          "requires": {
+            "aws-sign2": "0.6.0",
+            "aws4": "1.6.0",
+            "caseless": "0.12.0",
+            "combined-stream": "1.0.5",
+            "extend": "3.0.1",
+            "forever-agent": "0.6.1",
+            "form-data": "2.1.4",
+            "har-validator": "4.2.1",
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+            "performance-now": "0.2.0",
+            "qs": "6.4.0",
+            "safe-buffer": "5.1.1",
+            "stringstream": "0.0.5",
+            "tough-cookie": "2.3.3",
+            "tunnel-agent": "0.6.0",
+            "uuid": "3.1.0"
+          }
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+        "rimraf": {
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+          "bundled": true,
+          "requires": {
+            "glob": "7.1.2"
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+        "safe-buffer": {
+          "version": "5.1.1",
+          "bundled": true
+        },
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+          "version": "5.4.1",
+          "bundled": true
+        },
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+          "version": "2.0.0",
+          "bundled": true
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+          "version": "3.0.2",
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+        },
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+          "bundled": true,
+          "requires": {
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+            "getpass": "0.1.7",
+            "jsbn": "0.1.1",
+            "tweetnacl": "0.14.5"
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+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
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+          "bundled": true
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+        "tar": {
+          "version": "2.2.1",
+          "bundled": true,
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+            "fstream": "1.0.11",
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+          "requires": {
+            "debug": "2.6.9",
+            "fstream": "1.0.11",
+            "fstream-ignore": "1.0.5",
+            "once": "1.4.0",
+            "readable-stream": "2.3.3",
+            "rimraf": "2.6.2",
+            "tar": "2.2.1",
+            "uid-number": "0.0.6"
+          }
+        },
+        "tough-cookie": {
+          "version": "2.3.3",
+          "bundled": true,
+          "requires": {
+            "punycode": "1.4.1"
+          }
+        },
+        "tunnel-agent": {
+          "version": "0.6.0",
+          "bundled": true,
+          "requires": {
+            "safe-buffer": "5.1.1"
+          }
+        },
+        "tweetnacl": {
+          "version": "0.14.5",
+          "bundled": true,
+          "optional": true
+        },
+        "uid-number": {
+          "version": "0.0.6",
+          "bundled": true
+        },
+        "util-deprecate": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "uuid": {
+          "version": "3.1.0",
+          "bundled": true
+        },
+        "verror": {
+          "version": "1.10.0",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "1.0.0",
+            "core-util-is": "1.0.2",
+            "extsprintf": "1.3.0"
+          },
+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "wide-align": {
+          "version": "1.1.2",
+          "bundled": true,
+          "requires": {
+            "string-width": "1.0.2"
+          }
+        },
+        "wrappy": {
+          "version": "1.0.2",
+          "bundled": true
+        }
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 000000000..e4bc86ab3
--- /dev/null
+++ b/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "trilium-db-compare",
+  "description": "Trilium database compare tool",
+  "version": "0.0.1",
+  "dependencies": {
+    "colors": "^1.1.2",
+    "diff": "^3.4.0",
+    "sqlite": "^2.8.0"
+  }
+}
diff --git a/sql.js b/sql.js
new file mode 100644
index 000000000..a9c1fe125
--- /dev/null
+++ b/sql.js
@@ -0,0 +1,76 @@
+"use strict";
+
+async function getSingleResult(db, query, params = []) {
+    return await wrap(db, async db => db.get(query, ...params));
+}
+
+async function getSingleResultOrNull(db, query, params = []) {
+    const all = await wrap(db, async db => db.all(query, ...params));
+
+    return all.length > 0 ? all[0] : null;
+}
+
+async function getSingleValue(db, query, params = []) {
+    const row = await getSingleResultOrNull(db, query, params);
+
+    if (!row) {
+        return null;
+    }
+
+    return row[Object.keys(row)[0]];
+}
+
+async function getResults(db, query, params = []) {
+    return await wrap(db, async db => db.all(query, ...params));
+}
+
+async function getMap(db, query, params = []) {
+    const map = {};
+    const results = await getResults(db, query, params);
+
+    for (const row of results) {
+        const keys = Object.keys(row);
+
+        map[row[keys[0]]] = row[keys[1]];
+    }
+
+    return map;
+}
+
+async function getFlattenedResults(db, key, query, params = []) {
+    const list = [];
+    const result = await getResults(db, query, params);
+
+    for (const row of result) {
+        list.push(row[key]);
+    }
+
+    return list;
+}
+
+async function execute(db, query, params = []) {
+    return await wrap(db, async db => db.run(query, ...params));
+}
+
+async function wrap(db, func) {
+    const thisError = new Error();
+
+    try {
+        return await func(db);
+    }
+    catch (e) {
+        console.error("Error executing query. Inner exception: " + e.stack + thisError.stack);
+
+        throw thisError;
+    }
+}
+
+module.exports = {
+    getSingleValue,
+    getSingleResult,
+    getSingleResultOrNull,
+    getResults,
+    getMap,
+    getFlattenedResults,
+    execute
+};
\ No newline at end of file