Developer Tools
ToolSparkr
Free online developer tools for converting, generating, hashing and inspecting data
- 0community votes
- 2DR by Ahrefs no change since last check
Ahrefs Domain Rating listed 6 Nov 2026, relisted 25 Oct 2026.
Collection of 35+ free browser-based developer tools including converters, generators, security utilities and network lookups.
What it is
ToolSparkr: the homepage
ToolSparkr is a technology business offering 35+ free browser-based developer tools for converting data, generating hashes and codes, and inspecting networks. Tools include JSON converters, password generators, hash functions, DNS lookups, and SSL checkers. Most tools run client-side in the browser with no data stored on servers. A paid Pro plan offers an API key with 10x higher rate limits on server-side tools for $9 per month.
Pricing
Pricing model: Freemium
Free: all 35 browser tools with standard per-IP rate limits, no account needed. ToolSparkr Pro: $9 per month billed monthly with personal API key, 10x higher rate limits on 7 server-side endpoints, email support.
Follow ToolSparkr for an email about each milestone, update and new product they post, in a daily summary.
ToolSparkr metrics
| Metric | Value |
|---|---|
| Domain Rating | 2 no change since last check |
| Trust Flow | 3 no change since last check |
| Citation Flow | 1 no change since last check |
| Referring domains | 3 no change since last check |
| External backlinks | 5 no change since last check |
Ahrefs Domain Rating listed 6 Nov 2026, relisted 25 Oct 2026. Listed under topic: Computers/Software/Operating Systems (3). Majestic listed 25 Oct 2026, relisted 25 Oct 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
ToolSparkr domain listing data
Show the listing data
| Domain age | 7 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | Spaceship, Inc. |
| DNSSEC | Not signed |
ToolSparkr launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 2 to 2 no change since launch 25 Oct 2026, then 6 Nov 2026 |
| Trust Flow (Majestic) | 3 first measured 25 Oct 2026 |
| Referring domains (Majestic) | 3 first measured 25 Oct 2026 |
Day 11 since launch. Next receipt: day 30, 24 Nov 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
Compare and explore
Quick answers
Is ToolSparkr really free?
Yes, all 35+ tools are 100% free with no signup required. There are no premium tiers, no limits, and no hidden costs.
Do you store my data?
Most tools run entirely in your browser so inputs never reach the servers. A few tools like network lookups and the bcrypt generator query the server, but inputs are used only to return results and are not stored.
Can I request a new tool?
Yes, you can use the contact form with the subject line Feature Request and describe the tool you would like to see. They read every suggestion.
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ToolSparkr has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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