Free tier with real monthly allowance
1,000 conversions/month, no card required
Convertio alternative
Convertio is a polished browser-based converter with very broad format coverage and a separate developer API priced per conversion minute. Converterer is API-first: flat per-conversion pricing, webhook callbacks, your own storage as the destination, and no-code integrations for everything that should run without a browser.
At a glance
| Converterer | Convertio | |
|---|---|---|
| Pricing unit | Flat per conversion | Web plans: credits/month. API: prepaid packages at $0.10 per conversion minute |
| Free tier | 1,000 conversions/month, no card | Free browser widget (1 GB cap); API minutes are prepaid |
| API shape | Single POST /convert with the file and output format | POST /convert, PUT upload, poll GET /convert/:id/status |
| Authentication | HTTP Basic with your API key | API key in the JSON request body |
| SDKs | None needed: plain REST, recipes in 7 languages plus cURL | CLI tool; no official language SDKs documented |
| Job completion | Webhook callbacks | Callback URL or polling |
| Output delivery | Directly into your S3/B2/GCS/Azure bucket | Download URL from the API |
| File size limits | None | Web plans 1–20 GB per file by tier; API unlimited |
| Format coverage | 100+ conversion pairs | 300+ formats incl. OCR (broader long tail) |
Pricing
Convertio's web subscriptions and its developer API are priced separately. The API is prepaid at $0.10 per conversion minute, which adds up quickly at production volume; the web plans are cheaper but built around browser use.
| Monthly volume | Converterer | Convertio |
|---|---|---|
| 1,000 / month | $0 (Free plan) | API rate: ~$100 in prepaid minutes. Web plan: Lite $11.99/mo |
| 10,000 / month | $29.99 (Growth) | API rate: ~$1,000 in prepaid minutes. Web plan: Pro $44.99/mo |
| 50,000 / month | $99.99 (Scale) | API rate: ~$5,000 in prepaid minutes. Web plan: custom, from $54/mo |
Convertio figures from convertio.co/pricing and developers.convertio.co/api/pricing as of June 2026, assuming 1 conversion ≈ 1 credit/minute and the published $0.10/minute API rate before any volume discounts. Check their pricing pages for current numbers. Converterer overage: $0.02–0.03 per extra conversion depending on plan.
What Converterer brings
1,000 conversions/month, no card required
POST a file, get a task id, fetch result from your storage
Code recipes in 7 languages plus cURL, no SDK install
Get notified when a job finishes, no polling
Zapier, Make, n8n, Power Automate, Workato
Two APIs under one account
S3, B2, GCS, Azure Blob, files land directly in your bucket
Public per-month plans from $9.99, no quotes, cancel anytime
Migration
Convertio's API passes the key in the JSON body and splits a conversion across a create call, an upload, and a status poll. On Converterer that becomes one HTTP Basic multipart request, and instead of polling you can take a webhook and read the output from your own bucket.
# Convertio: POST /convert (apikey in body) → PUT upload → poll status → download # Converterer: one request, then a webhook (or fetch from your bucket) curl -u "$CONVERTERER_API_KEY:" \ https://api.converterer.com/convert \ -F input=@photo.heic \ -F output_format=jpg # → {"id":"9f1a8e7c-…", "status":"queued"} - result lands in your storage
Honest take
Next steps
No card. 1,000 free conversions per month is enough to validate against your real workload.
Popular conversions
Ready to test it?
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.