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.
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Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit
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
Download Withdata FileToDB
Windows 64 bit
Windows 32 bit
Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit
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.