Validate & Format Phone Numbers - Offline Bulk E.164

Phone Number Validator & Formatter - Offline, Bulk, E.164

Check if phone numbers are valid and format them as E.164, international and national. Get country, line type, area and time zone. Offline, nothing is called or texted. $0.001 per number, no start fee.

Website and local versions

• Website — Tidy Byte Tools product page

What it does

• Says if each number is valid and possible.
• Writes it 3 ways: +15551234567, international and national.
• Shows the country, line type (mobile, fixed line and more), area and time zones.
• Removes repeats for free.
• Works offline with Google's open phone rules. We never call or text anyone.

Price

You pay $0.001 per phone number checked (One unique number we checked. Blank lines and repeats are free.) There is no start fee from us. Apify adds its normal small platform cost. Set a max cost for the run and we stop there. We never charge for work we did not save.

How to use

1. Add links or paste your data.
2. Click Start.
3. Get results in the Output tab, or download them as CSV, Excel or JSON.

Input

• Phone numbers: One number per line.
• Or paste a list: Paste many numbers, one per line.
• Default country: Two-letter code (like US, GB, DE) for numbers without a + country code.
• Only show valid numbers: Hide numbers that are not valid. They still count as checked.

Example input

This is also the default sample, so a first run works if you just click Start.

{
  "phoneNumbers": [
    "+1 650-253-0000",
    "(415) 555-2671",
    "020 7946 0958",
    "12345"
  ],
  "defaultCountry": "US",
  "onlyValid": false
}

FAQ

Does this call or text the number? No. It works offline with Google's open phone rules (libphonenumber). Nothing is called or texted.

What is E.164? It is the international form, like +15551234567. You also get an international form with spaces and a national form.

What if a number has no country code? Set the default country (a two-letter code like US or GB). Numbers that already start with + do not need this.

Do I pay for invalid numbers or repeats? You pay $0.001 for each unique number we check, even if it is not valid. Blank lines and exact repeats are free.

Is line type always right? Line type (mobile, fixed line, and so on) is a best guess from the number plan. It can be unknown. It is not a live lookup.

Is there a free version of this Actor? Not for this exact tool. You can still try it with the sample numbers in the input form.

Good to know

• Files up to 50 MB each.
• Your data is only used for your run.
• Made by Tidy Byte Tools. Questions? Open an issue on this Actor's page.

More tools from Tidy Byte Tools

These Actors work well together:

• PDF Table Extractor — PDF tables to CSV, Excel and JSON. $0.003 per page with a table.
• PDF, Word and Web Page to Markdown — Clean Markdown and RAG chunks. $0.003 per file.
• HTML Table Extractor — Web tables to CSV and JSON. $0.0005 per data row.
• Broken Link Checker — Check site and sitemap links. $0.001 per link.
• Markdown Chunker for RAG — Split Markdown by headings. $0.0001 per chunk.
• CSV and Excel Data Cleaner — Dedupe and fix dates, emails and phones. $0.0005 per clean row.
• JSON to CSV Converter — Flatten nested JSON for spreadsheets. $0.0001 per row.
• CSV Encoding Fixer and Splitter — Fix garbled letters like é and split big files. $0.01 per file.
• Phone Number Validator — Check and format numbers offline. $0.001 per number.
• LLM Token Counter — Offline token and cost estimates for GPT, Claude and Gemini. $0.0005 per unique text.

Free local tools (no Apify account needed): pdf-table-pull-lite, doc2md-lite, link-check-lite, md-chunk-lite, json-shaper-lite.

Website: https://tidybytetools.github.io. All Actors: apify.com/tidybytetools.

Agent tip

Validate phone numbers and format them as E.164, international and national. Get country, line type, area and time zone. Offline — nothing is called or texted. $0.001 per number, no start fee. Works from Apify MCP and the API.