Want to batch import data from HTML files to PostgreSQL ?
Try Withdata FileToDB, a HTML file to PostgreSQL converter for Windows, MacOS, and Linux, Easy and Fast.
- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Import HTML to PostgreSQL locally and privately, avoid uploading HTML file(s) to online services.
- Support Windows, Linux, and macOS.
Batch import data from HTML files to PostgreSQL
Choose PostgreSQL and logon.
Click “Wizard – N Files To 1 Table” at task dialog.
Select the “HTML” file type.
then show the wizard.
1. Select a folder that constains HTML files.
2. Config first HTML file importing options.
3. Select a PostgreSQL table and config fields.
4. Preview data.
5. Import HTML files to the PostgreSQL table.
View imported data
More about HTML file to PostgreSQL converter
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HTML → PostgreSQL reference
Type mapping
| Value kind | in HTML | in PostgreSQL |
|---|---|---|
| Int | <td>1234</td> | integer |
| Bigint | <td>9007199254740993</td> | bigint |
| Decimal | <td>1234.56</td> | numeric(p,s) |
| Float | <td>1.234e+10</td> | double precision |
| Text | <td>text</td> | varchar(n) |
| Long text | <td>multi-line text</td> (entities for & <) | text |
| Date | <td>2026-09-18</td> | date |
| Datetime | <td>2026-09-18 14:30:00</td> | timestamp |
| Binary | not representable in a cell | bytea |
| Boolean | <td>true</td> | boolean |
| JSON | <td>{"a":1}</td> (quotes escaped) | jsonb |
Dialect differences
HTML is a file format and PostgreSQL is a database server, so the target has to be told the types the file never carried – the rows below are where the two sides diverge.
| Property | in HTML | in PostgreSQL |
|---|---|---|
| port | — | 5432 |
| identifiers | Attribute values in quotes; entities for reserved characters | "double quotes" |
| row limit | — | LIMIT n |
| dates | Whatever text was rendered | timestamp, timestamptz, date, time |
| long text | — | TEXT |
| binary | data: URIs inside src attributes | BYTEA |
| separator | Tags, not delimiters | — |
| encoding | Declared in a meta charset tag or the HTTP header | — |
| typing | None | — |
| shape | Free form; tables are row/column structures inside markup | Tables of rows and columns |
| ceiling | No formal limit | — |
Command line
| Side | Command |
|---|---|
| PostgreSQL | pg_dump or COPY ... TO |
| PostgreSQL (load) | COPY ... FROM |
Convert your data online, free
Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.
