Free online DB to HTM converter

A database may need to be shared as a browser-readable report when recipients do not have the application that created it. Exporting selected records to .htm produces a static page that can be opened, archived, or published without the original database software.

What the DB format is

.db is a generic database filename extension, not a single standardized format. In web design and development it commonly identifies an SQLite database used by a website, content-management tool, desktop utility, or development project; some applications use the same extension for another database engine.

The source database may contain tables, relationships, indexes, queries, accounts, and binary fields. The extension does not identify the engine, so determine which application created the file before converting it. An SQLite database opened in a text editor will not produce usable HTML.

What the HTM format is

.htm is the three-letter form of the HTML extension. An HTM file contains markup for headings, paragraphs, tables, links, and references to CSS, images, and scripts; a web browser renders it as a page. .htm and .html use the same HTML syntax, although a hosting system may require one extension specifically.

HTM is appropriate for a static report, catalog, directory, or data snapshot. It does not retain database searches, editing, authentication, relationships, indexes, triggers, stored procedures, or server-side application logic.

How to convert a DB file to HTM

First make a copy of the database and identify the table or query that should be published. Exporting a query is safer than exporting every table because it limits the columns and records exposed in the page.

For SQLite databases:

1. Install the SQLite command-line utility or open the file in DB Browser for SQLite.
2. In a terminal, open the database with sqlite3 source.db, replacing the filename as needed.
3. At the SQLite prompt, run:

.headers on
.mode html
.output export.htm
SELECT id, name, price FROM products ORDER BY name;
.output stdout
.quit

Replace the table and column names with the required data. A query can filter rows, sort results, join tables, and exclude private fields. .mode html writes an HTML table, but SQLite normally does not add a complete document wrapper. If the destination requires a full page, place the generated table inside a file such as:

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Products</title>
</head>
<body>
  <!-- insert the generated table here -->
</body>
</html>

For Microsoft Access databases: open the table or query in Access and choose External Data → Export → More → HTML Document. Select the output filename and export options, then inspect the resulting page. This method applies to Access-compatible databases such as .mdb and .accdb; a file with a .db extension must still be opened with the application that understands its actual format.

For other database applications: use the application’s HTML or web-report export if available. If it supports only CSV export, export the required query, open the CSV in LibreOffice Calc or another spreadsheet application, and save or export it as an HTML document. A script can also read the database and generate an HTML table, but it must escape database values before inserting them into markup.

You can also use the free converter on 101convert.com without installing software: upload the DB file, choose HTM, and download the result. This works only if the converter recognizes the database engine and can read its schema; do not upload confidential, personal, or production data when your privacy requirements prohibit external processing.

Quality and compatibility checks

• A generic DB-to-HTM conversion cannot reliably decide which tables, joins, columns, or records belong on a page. Compare the output with the source query.
• Database values become text or HTML table cells. Constraints, indexes, relationships, forms, procedures, authentication, and application behavior are not transferred.
• Use UTF-8 for non-ASCII characters and ensure the generator HTML-escapes values such as &, <, and >. Unescaped data can corrupt the page or introduce unsafe markup.
• Images and other binary fields may need separate files or data URLs. Basic exporters may output only filenames, raw bytes, or empty cells.
• Check links, image paths, CSS references, dates, decimal values, nulls, and long text in a browser. Relative paths can break when the HTM file is moved without its associated assets.
• Remove passwords, email addresses, internal identifiers, and other private fields before publishing the page.