Zamzar alternative

Looking for an alternative to Zamzar?

Zamzar is one of the longest-running names in file conversion, with a credit-based developer API alongside its consumer service. Converterer covers the same developer territory with a much larger free tier, flat per-conversion pricing, webhook callbacks, and website-to-PDF capture under the same account.

At a glance

How the two services compare.

	Converterer	Zamzar
Pricing unit	Flat per conversion	Credits per conversion (some heavy formats cost extra credits)
Free tier	1,000 conversions/month, no card	100 test credits, 1 MB max file size
Entry plan	$9.99/month for 2,500 conversions	$25/month for 500 credits
API shape	Single POST /convert with the file and output format	POST /v1/jobs, then GET file content
Authentication	HTTP Basic with your API key	HTTP Basic with your API key (same style)
Job completion	Webhook callbacks	Polling (no webhooks documented)
Output delivery	Directly into your S3/B2/GCS/Azure bucket	S3, FTP/SFTP, HTTP integrations
File size limits	None	Test: 1 MB; Startup: 50 MB; Growth/Scale: unlimited
Website capture	Included (URL → PDF/image API)	Not offered

Pricing

What the same volume costs.

Both services price per conversion, which makes this the cleanest comparison of the four major alternatives. The difference is the rate: Zamzar's credits run $0.03–0.05 each, while Converterer's plans work out to $0.002–0.004 per conversion.

Monthly volume	Converterer	Zamzar
1,000 / month	$0 (Free plan)	~$50 (Startup $25 + 500 overage at $0.05)
10,000 / month	$29.99 (Growth)	$299 (Scale plan, exactly 10,000 credits)
50,000 / month	$99.99 (Scale)	~$1,499 (Scale $299 + 40,000 overage at $0.03)

Zamzar figures from developers.zamzar.com/pricing as of June 2026 (Test free / Startup $25 / Growth $99 / Scale $299), assuming 1 conversion ≈ 1 credit; some heavy formats consume extra credits. Check their pricing page for current numbers. Converterer overage: $0.02–0.03 per extra conversion depending on plan.

What Converterer brings

Features worth comparing.

Free tier with real monthly allowance

1,000 conversions/month, no card required

Direct REST API

POST a file, get a task id, fetch result from your storage

SDK-free integration

Code recipes in 7 languages plus cURL, no SDK install

Webhook callbacks

Get notified when a job finishes, no polling

No-code workflows

Zapier, Make, n8n, Power Automate, Workato

Both file conversion and website-to-PDF

Two APIs under one account

Bring your own storage

S3, B2, GCS, Azure Blob, files land directly in your bucket

Transparent pricing

Public per-month plans from $9.99, no quotes, cancel anytime

Migration

Moving an integration across.

This is the easiest migration of the four: Zamzar and Converterer both use HTTP Basic auth with the API key as the username. Swap the hostname, rename the job call to /convert, and replace download polling with a webhook or a read from your own bucket.

# Zamzar: POST /v1/jobs → poll → GET /v1/files/:id/content
# Converterer: same Basic-auth style, one request, webhook when done
curl -u "$CONVERTERER_API_KEY:" \
  https://api.converterer.com/convert \
  -F input=@report.docx \
  -F output_format=pdf
# → {"id":"9f1a8e7c-…", "status":"queued"} - result lands in your storage

Read the API reference

Honest take

When Zamzar is the better fit.

You want the longest track record in the space: Zamzar has been converting files since 2006 and the brand carries real enterprise trust.
You need published support SLAs per tier and a procurement-friendly vendor.
You need a custom conversion type built for you (available on their Scale tier).
You want official Java, PHP, or Python SDKs maintained by the vendor.

Next steps

Try it before you commit.

No card. 1,000 free conversions per month is enough to validate against your real workload.

Start free Quick-start guide Compare pricing tiers

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Ready to test it?

Start converting files in minutes.

Get into the API docs, grab a code recipe in your language, or wire up a no-code workflow. The free tier is enough to test against your real files.