Barcode API — every common symbology

Nine symbologies, check-digit validation, print-resolution PNG or vector SVG.

/// Quick answer

ASHDOCS generates nine barcode symbologies — including GS1-128, DataMatrix, PDF417 and ITF-14 — as PNG, SVG or PDF, with check digits validated rather than assumed, and batches rendered either as a ZIP of images or as one printable label sheet. A free version runs in the browser with no account.

Try Barcode API — free →Read the docs Prefer a UI? Use the free barcode generator →

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How does the Barcode API work?

One HTTP request from any language. Every ASHDOCS endpoint uses the same X-API-Key header.

How to use this endpoint →

curl -X POST https://www.ashdocs.com/api/v1/tools/barcode \
  -H "X-API-Key: ash_live_..." \
  -H "Content-Type: application/json" \
  -d '{"data":"5901234123457","symbology":"ean13","options":{"format":"svg","height_mm":25}}'

import requests

r = requests.post(
    "https://www.ashdocs.com/api/v1/tools/barcode",
    headers={"X-API-Key": "ash_live_..."},
    json={
        "data": "5901234123457",
        "symbology": "ean13",
        "options": {
            "format": "svg",
            "height_mm": 25
        }
    },
)
job = r.json()
print(job["status"], job["output_files"][0]["url"])

const res = await fetch("https://www.ashdocs.com/api/v1/tools/barcode", {
  method: "POST",
  headers: { "X-API-Key": "ash_live_...", "Content-Type": "application/json" },
  body: JSON.stringify({"data":"5901234123457","symbology":"ean13","options":{"format":"svg","height_mm":25}}),
});
const job = await res.json();
console.log(job.status, job.output_files[0].url);

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("X-API-Key", "ash_live_...");

var body = new StringContent(
    "{\"data\":\"5901234123457\",\"symbology\":\"ean13\",\"options\":{\"format\":\"svg\",\"height_mm\":25}}",
    Encoding.UTF8, "application/json");

var res = await client.PostAsync("https://www.ashdocs.com/api/v1/tools/barcode", body);
var job = await res.Content.ReadAsStringAsync();
Console.WriteLine(job);

import java.io.ByteArrayOutputStream;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;

public class Sample {
  public static void main(String[] args) throws Exception {
    String json = "{\"data\":\"5901234123457\",\"symbology\":\"ean13\",\"options\":{\"format\":\"svg\",\"height_mm\":25}}";
    HttpRequest req = HttpRequest.newBuilder(URI.create("https://www.ashdocs.com/api/v1/tools/barcode"))
        .header("X-API-Key", "ash_live_...")
        .header("Content-Type", "application/json")
        .POST(HttpRequest.BodyPublishers.ofString(json))
        .build();
    HttpResponse<String> res = HttpClient.newHttpClient().send(req, HttpResponse.BodyHandlers.ofString());
    System.out.println(res.body());
  }
}

#include <stdio.h>
#include <curl/curl.h>

int main(void) {
  CURL *curl = curl_easy_init();
  if (!curl) return 1;
  struct curl_slist *headers = NULL;
  headers = curl_slist_append(headers, "X-API-Key: ash_live_...");
  headers = curl_slist_append(headers, "Content-Type: application/json");
  curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"data\":\"5901234123457\",\"symbology\":\"ean13\",\"options\":{\"format\":\"svg\",\"height_mm\":25}}");
  curl_easy_setopt(curl, CURLOPT_URL, "https://www.ashdocs.com/api/v1/tools/barcode");
  curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
  CURLcode rc = curl_easy_perform(curl);
  printf("\n");
  curl_slist_free_all(headers);
  curl_easy_cleanup(curl);
  return rc == CURLE_OK ? 0 : 1;
}